Epson Stylus SX230, Stylus SX235W, Stylus SX430W, Stylus SX440W Service Manual

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SERVICE MANUAL

Color Inkjet Printer

Epson Stylus TX235/Epson Stylus SX230/Epson ME OFFICE 535 Epson Stylus NX230/Epson Stylus TX230W/Epson Stylus TX235W/ Epson Stylus SX235W/Epson Stylus NX330/Epson Stylus TX430W/ Epson Stylus SX430W/Epson Stylus SX435W/Epson ME OFFICE 570W Epson Stylus NX430/Epson Stylus TX435W/Epson Stylus SX440W/ Epson Stylus SX445W

CONFIDENTIAL

SEMF10-011

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Notice:

by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of SEIKO EPSON CORPORATION.

 All effort have been made to ensure the accuracy of the contents of this manual. However, should any errors be

detected, SEIKO EPSON would greatly appreciate being informed of them.

 The contents of this manual are subject to change without notice.  The above not withstanding SEIKO EPSON CORPORATION can assume no responsibility for any errors in this

manual or the consequences thereof.

EPSON is a registered trademark of SEIKO EPSON CORPORATION.

Note :Other product names used herein are for identification purpose only and may be trademarks or registered

trademarks of their respective owners. EPSON disclaims any and all rights in those marks.

I&I CS Quality Assurance Department

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Safety Precautions

All safety procedures described here shall be strictly adhered to by all parties servicing and maintaining this product.

DANGER

Strictly observe the following cautions. Failure to comply could result in serious bodily injury or loss of life.

1. Always disconnect the product from the power source and peripheral devices when servicing the product or performing maintenance.

2. When performing works described in this manual, do not connect to a power source until instructed to do so. Connecting to a power source causes high voltage in the power supply unit and some electronic components even if the product power switch is off. If you need to perform the work with the power cable connected to a power source, use extreme caution to avoid electrical shock.

WARNING

Strictly observe the following cautions. Failure to comply may lead to personal injury or loss of life.

1. Always wear protective goggles for disassembly and reassembly to protect your eyes from ink in working. If any ink gets in your eyes, wash your eyes with clean water and consult a doctor immediately.

2. When using compressed air products; such as air duster, for cleaning during repair and maintenance, the use of such products containing flammable gas is prohibited.

PRECAUTIONS

Strictly observe the following cautions. Failure to comply may lead to personal injury or damage of the product.

1. Repairs on Epson product should be performed only by an Epson certified repair technician.

2. No work should be performed on this product by persons unfamiliar with basic safety knowledge required for electrician.

3. The power rating of this product is indicated on the serial number/rating plate. Never connect this product to the power source whose voltages is different from the rated voltage.

4. Replace malfunctioning components only with those components provided or approved by Epson; introduction of second-source ICs or other non-approved components may damage the product and void any applicable Epson warranty.

5. The capacitors on the Main Board may be electrically charged right after the power turns off or after driving motors which generates counter electromotive force such as when rotating the PF Roller or when moving the CR Unit. There is a risk to damage the Main Board if the Head FFC is short-circuited with the capacitors on the Main Board electrically charged, therefore, after the power turns off or after motors are driven, leave the printer untouched for approximately 30 seconds to discharge the capacitors before starting disassembly/ reassembly.

6. To prevent the circuit boards from short-circuiting, be careful about the following when handling FFC or cables.



When handling FFC, take care not to let the terminal section of FFC touch metal parts.

 When connecting cables/FFC to the connectors on circuit boards, connect them straight to the connectors to avoid

slant insertion.

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7. In order to protect sensitive microprocessors and circuitry, use static discharge equipment, such as anti-static wrist straps, when accessing internal components.

8. Do not tilt this product immediately after initial ink charge, especially after performing the ink charge several times. Doing so may cause ink to leak from the product because it may take some time for the waste ink pads to completely absorb ink wasted due to the ink charge.

9. Never touch the ink or wasted ink with bare hands. If ink comes into contact with your skin, wash it off with soap and water immediately. If you have a skin irritation, consult a doctor immediately.

10. When disassembling or assembling this product, make sure to wear gloves to avoid injuries from metal parts with sharp edges.

11. Use only recommended tools for disassembling, assembling or adjusting the printer.

12. Observe the specified torque when tightening screws.

13. Be extremely careful not to scratch or contaminate the following parts.

Nozzle plate of the Printhead

  CR Scale  PF Scale  Coated surface of the PF Roller  Gears  Rollers  LCD  Scanner Sensor  Exterior parts

14. Never use oil or grease other than those specified in this manual. Use of different types of oil or grease may damage the component or give bad influence on the printer function.

15. Apply the specified amount of grease described in this manual.

16. Make the specified adjustments when you disassemble the printer.

17. When cleaning this product, follow the procedure described in this manual.

18. When transporting this product after filling the ink in the printhead, pack the printer without removing the ink cartridges in order to prevent the printhead from drying out.

19. Make sure to install antivirus software in the computers used for the service support activities.

20. Keep the virus pattern file of antivirus software up-to-date.

21. When disassembling/reassembling this product, if you find adhesive power of the double-sided tape which secure the parts or FFC is not enough, replace the tape with new one and attach it correctly to the specified points where the parts or FFC should be secured.

22. Unless otherwise specified in this manual, the labels attached on the returned product should be transferred to the corresponding attachment positions on the new one referring to the labels on the returned product.

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About This Manual

This manual, consists of the following chapters, is intended for repair service personnel and includes information necessary for properly performing maintenance and servicing the product.

CHAPTER 1. TROUBLESHOOTING

Describes the step-by-step procedures for the troubleshooting.

CHAPTER 2. DISASSEMBLY / REASSEMBLY

Describes the disassembly/reassembly procedures for main parts/units of the product, and provides the standard operation time for servicing the product.

CHAPTER 3. ADJUSTMENT

Describes the required adjustments for servicing the product.

CHAPTER 4. MAINTENANCE

Describes maintenance items and procedures for servicing the product.

CHAPTER 5. REFURBISHMENT

Describes refurbishing work of the product and its purpose.

CHAPTER 6. APPENDIX

Provides the following additional information for reference:

• Connector Diagram

• Protection for Transportation

Symbols Used in this Manual

Various symbols are used throughout this manual either to provide additional information on a specific topic or to warn of possible danger present during a procedure or an action. Pay attention to all symbols when they are used, and always read explanation thoroughly and follow the instructions.

Indicates an operating or maintenance procedure, practice or condition that, if not strictly observed, could result in serious injury or loss of life.

Indicates an operating or maintenance procedure, practice, or condition that, if not strictly observed, could result in bodily injury, damage or malfunction of equipment.

May indicate an operating or maintenance procedure, practice or condition that is necessary to accomplish a task efficiently. It may also provide additional information that is related to a specific subject, or comment on the results achieved through a previous action.

For Chapter 2 “Disassembly/Reassembly”, symbols other than indicated above are used to show additional information for disassembly/reassembly. For the details on those symbols, see "2.2 Disassembly/Reassembly

Procedures (p26)".

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Revision Status

Revision Date of Issue Description

A April 22, 2011 First Release

B June 22, 2011 Revised Contents

 Preface

 " Safety Precautions (p3) " has been added.

 Chapter 1

 Made change in "1.1.1 Troubleshooting Workflow (p10) ".

 Made change in "1.3.1 Displaying the Fatal Error Code (p14)".

 Made change in "1.3.2 Printer Fatal Error Code (p15) ".

 Made change in "1.3.3 Scanner Fatal Error Code (p18) ".

 Chapter 2

 Made change in "2.1.3 Locations of the Parts/Units (p21) ".

 Made change in "2.1.4 Standard Operation Time for Servicing the Product (p24)".

 Made change in "2.2.1 Disassembly Flowchart (p27) ".

 Caution in " Housing Left/Housing Right (p32) " has been added.

 Made change in " PS Unit (p32) ".

 Made change in " Waste Ink Pad Assy (p32) ".

 Made change in " Panel Housing Lower Assy (SX235W series) (p33) ".

 " Panel Housing Lower Assy (SX440W series) (p33) " has been added.

 " Panel Board w/Touch Panel (SX440W series) (p34) " has been added.

 Made change in " Main Board (p34) ".

 Made change in " LD Roller Assy (1) (p34) ".

 " Paper Guide Front Porous Pad (p35) " has been added.

 Made change in " Paper Guide Lower Porous Pad (p35)".

 Made change in " PF Driven Pulley Assy / PF Timing Belt (p35) ".

 Made change in " Main Frame Assy (p36) ".

 " PF Grounding Spring (p37) " has been added.

 " Wireless LAN Module (SX235W series/SX430W series/SX440W series) (p37)" has

been added.

 Made change in " Main Board (p38) ".

 Made change in " Panel Unit (1) (p38) ".

 Made change in " Panel Unit (2) (p38) ".

 Made change in " Inside the Panel Unit (SX230 series/SX235W series/SX430W series)

(p38)".

 " Inside the Panel Unit (SX440W series only) (p38) " has been added.

 Made change in " Card Slot Board (SX230 series/SX430W series/SX440W series)

(p39)".

 Made change in " Head FFC (2) (p39) ".

 Made change in " PS Unit (p40) ".

 Made change in " PF Motor (p40) ".

 Made change in " Scanner FFC (p40) ".

 Made change in " PF Encoder Sensor (p40) ".

 Chapter 3

 Made change in "3.1 Required Adjustments (p42) ".

 Made change in "3.2.3 Scanner Motor Heat Protection Control (p48) ".

 Made change in "3.3.1 Checking the Platen Gap (p49) ".

 "3.3.2 CR/PF Belt Tension Check (p50) " has been added.

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Revision Date of Issue Description

B June 22, 2011

 Chapter 4

 "4.2 Lubrication Points and Instructions (p54)"

ASP supply status and lubrication status when supplied as ASP has been added for all lubrication points.

 "4-3 Lubrication of the Frame Base (3) (p54) " has been added.

 "4-13 Lubrication of the Scanner Carriage (2) (p57) " has been added.

 "4-15 Lubrication of Scanner Motor, Combination Gear 14.4,10.8 and Combination Gear

13.8,9.66 (p57)" has been added.

 "4-14 Lubrication of the Panel Stand (p57)" has been added.

 Chapter 5

 Made change in "5.1.1 Ink Discharge (p59)".

 Chapter 6

 Made change in "6.2.1 Securing the CR Unit (p62) ".

 "6.2.2 Securing the Paper Support Assy (p63)" has been added.

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Epson Stylus SX230 series / SX235W series / SX430W series / SX440W series Revision B

Chapter 1 Troubleshooting

1.1 Troubleshooting....................................................................................................................................................... 10

1.1.1 Troubleshooting Workflow ............................................................................................................................ 10

1.2 Power-On Sequence ................................................................................................................................................ 12

1.3 Fatal Error Code List ............................................................................................................................................... 14

1.3.1 Displaying the Fatal Error Code..................................................................................................................... 14

1.3.2 Printer Fatal Error Code ................................................................................................................................. 15

1.3.3 Scanner Fatal Error Code ............................................................................................................................... 18

Chapter 2 Disassembly/Reassembly

2.1 Overview ................................................................................................................................................................. 20

2.1.1 Tools ............................................................................................................................................................... 20

2.1.2 Jigs .................................................................................................................................................................. 20

2.1.2.1 Making the Spring Hook Jig.................................................................................................................. 20

2.1.3 Locations of the Parts/Units ........................................................................................................................... 21

2.1.4 Standard Operation Time for Servicing the Product ...................................................................................... 24

2.2 Disassembly/Reassembly Procedures ..................................................................................................................... 26

2.2.1 Disassembly Flowchart................................................................................................................................... 27

2.2.2 Disassembly Flowchart (Printhead/Main Board) ........................................................................................... 31

2.3 Detailed Disassembly/Reassembly Procedure for each Part/Unit........................................................................... 32

2.4 Routing FFCs/cables ............................................................................................................................................... 38

Chapter 3 Adjustment

3.1 Required Adjustments ............................................................................................................................................. 42

3.2 Adjustment Program................................................................................................................................................ 47

3.2.1 Operating Environment .................................................................................................................................. 47

3.2.2 Details of the Adjustment Program ................................................................................................................ 47

3.2.2.1 CR Motor Heat Protection Control / PF Motor Heat Protection Control .............................................. 47

3.2.3 Scanner Motor Heat Protection Control ......................................................................................................... 48

3.3 Mechanism Adjustment / Check ............................................................................................................................. 49

3.3.1 Checking the Platen Gap ................................................................................................................................ 49

3.3.2 CR/PF Belt Tension Check............................................................................................................................. 50

Chapter 4 Maintenance

4.1 Overview ................................................................................................................................................................. 53

4.1.1 Cleaning .......................................................................................................................................................... 53

4.1.2 Lubrication...................................................................................................................................................... 53

4.2 Lubrication Points and Instructions......................................................................................................................... 54

Chapter 5 Refurbishment

5.1 Overview ................................................................................................................................................................. 59

5.1.1 Ink Discharge.................................................................................................................................................. 59

Chapter 6 Appendix

6.1 Connector Diagram ................................................................................................................................................. 61

6.2 Protection for Transportation .................................................................................................................................. 62

6.2.1 Securing the CR Unit...................................................................................................................................... 62

6.2.2 Securing the Paper Support Assy ................................................................................................................... 63

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CHAPTER 1

TROUBLESHOOTING

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Epson Stylus SX230 series / SX235W series / SX430W series / SX440W series Revision B

1.1 Troubleshooting

This section describes the troubleshooting workflow and fatal error information.

In this chapter, the product names are called as follows:

 SX230 series: Epson Stylus TX235/Epson Stylus SX230/Epson ME OFFICE 535  SX235W series:

 SX430W series:

 SX440W series:

1.1.1 Troubleshooting Workflow

The following page describes the troubleshooting workflow. Follow the flow when troubleshooting problems.

Epson Stylus NX230/Epson Stylus TX235W/Epson Stylus SX235W/ Epson Stylus TX230W

Epson Stylus NX330/Epson Stylus TX430W/Epson Stylus SX430W/ Epson Stylus SX435W/Epson ME OFFICE 570W

Epson Stylus NX430/Epson Stylus TX435W/Epson Stylus SX440W/ Epson Stylus SX445W

Troubleshooting Troubleshooting 10

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Epson Stylus SX230 series / SX235W series / SX430W series / SX440W series Revision B

Start

Turn on the power

Does printer turn on the

power?

Yes

Is Power-on sequence

finished without error?

Yes

Standby condition

Print check pattern

Does an error occur

when printing?

Yes

Is printing operation

finished without trouble?

Yes

Copy an image

Is scanning operation

finished without trouble?

Yes

Finish

Major problem without

Scanner failure

[Presumable Cause]

• Contamination of Scanner Glass

• Contamination of Document Pad

• CIS Unit bonding failure

• CIS Unit damage

• Scanner Motor damage

• Insufficient grease

[Major Troubleshooting]

• Scanner Glass cleaning

• Document Pad cleaning

• Document Pad replacement

• CIS Unit replacement

• Scanner Motor replacement

• Lubrication of grease

[Presumable Cause]

• PS Unit damage

• Main Board damage

[Major Troubleshooting]

• PS Unit replacement

• Main Board replacement

error message

No Power

Fatal error

Please refer to

List (p14)"

[Phenomenon]

• Poor printing quality

• Ink stain on paper

•Dot missing

• Paper eject without printing

[Presumable Cause]

• Driver / Panel mis-setting

• Contamination of CR scale

• Contamination of Printhead cover

• Printhead damage

• Ink clogging of Printhead

• Contamination on Cap Unit / Wiper of Ink System Assy

• Ink System Assy damage

• Float of Porous Pad on Paper Guide Front

• Narrower/Wider PG (out of standard)

• PE Sensor Lever damage

• PE Sensor damage

[Major Troubleshooting]

• Driver / Panel re-setting

• CR Scale replacement

• Printhead cover cleaning

• Printhead cleaning

• Ink Cartridge replacement

• Printhead replacement

• Rubber cleaning of Cap Unit

• Ink System Assy replacement

• Porous Pad re-installation

• Printer replacement

• PE Sensor Lever replacement

• PE Sensor replacement (Main Board replacement)

" 1.3 Fatal Error Code

Major problem without error message

Poor Printing

Maintenance error

[Occurrence Condition]

This error occurs when maintenance counter in EEPROM exceeds the specified value.

[Major Occurrence Timing]

• Power-on timing

• Print start timing

• Cleaning timing

• Ink Cartridge replacement timing

[Troubleshooting]

• Porous Pad replacement & Maintenance counter reset

Poor Paper Loading

[Presumable Cause]

• Use of 3rd party media

• Edge guide mis-setting

• Foreign material

• Part come-off

• Contamination of LD Roller or PF roller

[Major Troubleshooting]

• Recommendation of EPSON media

• Edge guide re-setting

• Foreign material removal

• Part re-installation

• Roller replacement

Abnormal Noise

[Presumable Cause]

• Foreign material

• Insufficient grease

•Gear damage

[Major Troubleshooting]

• Foreign material removal

• Lubrication of grease

• Gear replacement

Major problem with error message

Ink End error

[Occurrence Condition]

This error occurs when ink in Ink Cartridge is empty.

[Major Occurrence Timing]

• Power-on timing

• Print start timing

• Cleaning timing

• Ink Cartridge replacement timing

[Troubleshooting]

• Ink Cartridge replacement

Paper Jam error

[Occurrence Condition]

This error occurs when top/ bottom of paper is not detected by PE Sensor in the specified steps of paper loading / ejecting operation correctly.

[Major Occurrence Timing]

• Power-on timing

• Paper loading timing

• Paper eject timing

[Major Troubleshooting]

1 Perform paper eject operation

from operation panel.

• Success Starts paper feeding operation again if printer has print data.

•Fail Occurs paper jam error again.

2 If fail in the above 1, remove

the paper by opening Scanner Unit.

3 Perform paper eject operation

from operation panel again.

• Success Starts paper feeding operation again if printer has print data.

•Fail Occurs paper jam error again.

4 If fail in the above 3, check

foreign material / part comeoff / PE Sensor Lever / PE Sensor / Porous Pad on Paper Guide Front / Main board.

Ink Cartridge error

[Occurrence Condition]

This error occurs when the Ink Cartridge failed.

[Major Occurrence Timing]

• Power-on timing

• Print start timing

• Cleaning timing

• Ink Cartridge replacement timing

[Major Troubleshooting]

• Remove and reinstall Ink Cartridge

• Ink Cartridge replacement

• CSIC Terminal (Holder Board Assy) replacement

• Holder Board Assy replacement

• Head FFC replacement

• Main Board replacement

No Paper error

[Occurrence Condition]

This error occurs when top of paper can not be detected correctly by PE Sensor in the specified steps up to completion of the paper loading operation. (No paper / No loading / large paper skew)

[Major Occurrence Timing]

• Paper loading timing

[Major Troubleshooting]

1 Set paper in ASF and perform

paper feed operation.

2 If the paper stops before

reaching PE Sensor, remove it and check the paper condition.

3 A) If paper is OK, set paper in

ASF and move edge guides to appropriate position, and perform 2 again.

B) If damage in the above 2,

check foreign materials / parts come-off / parts transformation in paper path.

4 If not resolved by 3-A & 3-B,

check foreign material / Part come-off / surface condition of LD Roller or PF Roller / PE Sensor Lever / PE Sensor / Main Board / PF Motor.

No Ink Cartridge error

[Occurrence Condition]

This error occurs when Ink Cartridge is not installed.

[Major Occurrence Timing]

• Power-on timing

[Troubleshooting]

• Ink Cartridge installation

Double Feed error

[Occurrence Condition]

When manual duplex printing is selected using the printer driver, this error occurs if the actual paper length detected by PE Sensor does not match with the paper length specified in the printer driver. (The error occurs when the actual length is longer than the theoretical length specified in the driver.)

[Major Occurrence Timing]

• Paper loading timing

• Paper eject timing

[Troubleshooting]

• PE Sensor Lever replacement

• PE Sensor replacement (Main Board replacement)

• Main Board replacement

[NOTE]

This error may occur in the manual duplex printing if the inverted sheet printed on the first side sticks to the second sheet when the first side printing is complete and the sheet is inverted and set to ASF to print on the other side.

Paper Jam Fatal error

[Occurrence Condition]

This error occurs when CR Unit is blocked by jammed paper.

[Major Occurrence Timing]

• Power-on timing

[Major Troubleshooting]

• Remove jammed paper

[NOTE]

On this product, if CR Unit touches jammed paper, CR Unit moves back in the opposite direction so that customer can remove the paper. However, if CR Unit cannot move in this sequence, this error occurs.

Paper Size Unmatch error

[Occurrence Condition]

This error occurs if the actual paper length detected by PE Sensor does not match with the paper length specified in the printer driver. (The error occurs no matter when the actual length is longer or shorter than the theoretical length specified in the driver.)

[Major Occurrence Timing]

• Paper eject timing

[Troubleshooting]

• PE Sensor Lever replacement

• PE Sensor replacement (Main Board replacement)

• Main Board replacement

*1: If the Hopper of ASF on the returned product touches the LD Roller, the initial ink charge has

not been completed for the product yet.

*2: If the printer can turn on but turns off right away, the protection circuit may cut off the power

due to an error such as a circuit failure.

*3: In case of “Not Trouble Found”, check fatal error code.

 If the reason for the return is evident, first check the phenomenon user

claims recurs, then proceed to the troubleshooting.

 This flowchart is compiled based on the following contents.

• Our experience regarding the quality problem.

• ESK’s repair data.

• Printer Mechanism specification for Epson Stylus SX230 series / SX235W series / SX430W series / SX440W series.

Troubleshooting Troubleshooting Workflow 11

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Epson Stylus SX230 series / SX235W series / SX430W series / SX440W series Revision B

1.2 Power-On Sequence

This section describes the power-on sequences in two conditions. The preconditions are as follows.

 Condition 1: Normal power-on sequence (See Table 1-1.)



Turning on the printer after turning it off without an error.

 Initial ink charge has finished and every cartridge has sufficient ink.  No paper on the paper path.  The Printhead is capped with the Cap Assy.  The CR Unit is normally fixed by the Change Lever.  Maintenance error recovery has never been performed.

Table 1-1. Condition 1: Normal Power-on Sequence

Operation

1. Printhead initialization and fuse inspection

1-1.Initializes the Printhead, and checks for the fuse on the circuit boards in the printer.

2. Checking for waste ink overflow

2-1.Checks the waste ink counter if the waste ink overflow is occurring.

3. Seeking the home position

3-1.The CR Unit moves to the 80-digit side slowly and confirms it touches the Change Lever (CR lock).

CR Unit/PF Roller

movement and

position

3-2.The CR Unit moves to the 0-digit side slowly and confirms it touches the Right Frame.

3-3.After the PE Sensor checks if paper exists, the PF Motor rotates clockwise for one second and releases the CR lock.

3-4.While checking if the CR Unit does not touch the Change Lever (CR lock) or the foreign material, the CR Unit

moves to the 80-digit side slowly until it touches the Left Frame.

3-5.The distance from the position where the CR Unit touched to the Left Frame is regarded as the standard distance

from the origin position, and the home position is fixed. From then on, the CR Unit position is monitored according to the signals from the CR Encoder.

3-6.The CR Unit quickly moves to the ink end sensor detection position on the 0-digit side.

4. Low temperature operation sequence

4-1.The CR Unit moves to the 0-digit side slowly.

4-2.The CR Unit quickly moves back and forth between near the Change Lever and near the Left Frame for two times.

5. Detecting ink cartridge and initializing ink system

5-1.After checking the Ink End Sensor, the CR Unit moves to the ink detection position in the 0-digit side and detects

the ink remaining.

5-2.The CR Unit returns to its home position.

Note 1: The rotation directions of the PF Motor are as follows.

Clockwise: Paper is fed normally Counterclockwise: Paper is fed backward

*2: The conditions of the CR lock are as follows.

Red CR lock is set White CR lock is released

*3: The fatal error occurs if there is a problem such as the fuse blew. *4: Executed when the detected temperature is under 5 *5: The empty suction operation may occur depending on the situation.

C (41oF) by the thermistor on the Printhead.

Troubleshooting Power-On Sequence 12

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Epson Stylus SX230 series / SX235W series / SX430W series / SX440W series Revision B

 Condition 2: Power-on sequence after recovering from a paper jam error (See Table 1-2.)



Turning on the printer after turning it off with a paper jam fatal error.

 There still remains paper on the paper path out of the detecting area of the PE Sensor.  Maintenance error recovery has never been performed.

Table 1-2. Condition 2: Power-on Sequence after Recovering from a Paper Jam Error

Operation

Executes No.1 to No.3 on the normal power-on sequence (Table 1-1).

4. Detecting remaining paper

4-1.5.The CR Unit returns to its home position.

4-2.The CR Unit moves to the 80-digit side and confirms there is no paper.

4-3.The CR Unit quickly returns to its home position, and displays on the LCD or with flashing LEDs that the paper jam

error occurs.

When the user removes the paper and releases the paper jam error by panel operation, the normal power-on sequence from No.1 (Table 1-1) is executed

again.

Note *1: “Paper exists” is detected when the CR Unit touches the paper. When “paper does not exist” is detected, the power-on sequence

of condition 1 (Table 1-1) is executed from No.4.

*2: If the paper jam error cannot be solved after repeating the power-on sequence on condition 2 (

into the paper jam fatal error for the third time.

CR Unit/PF Roller

movement and

position

Table 1-2) twice, the printer turns

 To recover from the maintenance error, the dedicated software that can be downloaded

from the web site which can be accessed from STM3 is required.

 The printer operation related to the maintenance error recovery is as follows.

• When the waste ink counter reaches the threshold value (1) for the first time and the maintenance error occurs, the counter threshold of the maintenance error is changed to threshold value 2 after performing recovery from the maintenance error.

• After the threshold value (2) is enabled, the warning; to notify the possibility of ink leakage out of the printer, is displayed every time the waste ink counter increases by 1%.

• If the waste ink counter reaches the threshold value (2), the maintenance error occurs. Then, the waste ink counter is changed back to the threshold value (1) after recovering from the maintenance error, and the warning is displayed repeatedly according to the increment of the waste ink counter until the maintenance error occurs when the threshold value (2) is reached. (Recovery from the maintenance error can be performed up to the specified number of times.)

Troubleshooting Power-On Sequence 13

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Epson Stylus SX230 series / SX235W series / SX430W series / SX440W series Revision B

Home button OK button Stop button

LCD display

Fatal error code

FATAL CODE:0x02

1.3 Fatal Error Code List

This section describes how to check the fatal error code, description, and the possible causes.

1.3.1 Displaying the Fatal Error Code

The fatal error code is stored in the EEPROM on the Main Board and can be read out using the Adjustment Program. The code can be displayed on the LCD of the control panel by a special panel operation.

 Since SX235W series does not have LCD, use the Adjustment Program to check the fatal

error code.

 Only the printer fatal error code can be displayed by this panel operation.

 For the fatal error codes, descriptions, and their possible causes, see " 1.3.2 Printer Fatal

Error Code (p15)".

The following describes the panel operation for SX230 series, SX430W series and SX440W series to display the fatal error code.

Method of displaying the fatal error code

1. Press the following buttons simultaneously while the fatal error is occurring.

Home button

  Stop button  OK button

Figure 1-1. Displaying the Fatal Error Code (1)

2. Check the displayed fatal error code.

Figure 1-2. Displaying the Fatal Error Code (2)

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1.3.2 Printer Fatal Error Code

This section describes the printer fatal error code and the possible cause for this product.

Table 1-3. Fatal Error List (Printer)

Error type

DC motor error

Error

code

01H CR PID excess load error

02H CR PID excess speed error

03H CR PID reverse error

04H CR PID lock error

08H CR load position reverse error

09H CR load position excess speed error

0AH CR load position excess load error

F1H PF PID excess load error

F2H PF PID excess speed error

Error name Possible cause

• CR Motor failure

• CR Unit drive mechanism overload (paper jam, foreign object, insufficient grease, deformation of the Main Frame)

• Some part may be detached. (Paper Guide Upper Assy, Cap Assy)

• Tooth skip of the CR Timing Belt

• Improper tension of the CR Timing Belt

• Cable disconnection

• Main Board failure (Motor driver failure)

• CR Encoder failure (contaminated/detached scale, Encoder Sensor failure)

• Main Board failure (Motor driver failure)

• CR Encoder failure (contaminated/detached scale, Encoder Sensor failure)

• Some external force is applied to the printer such as stopping the CR Unit during printer operation, vibration or the like.

• Tooth skip of the CR Timing Belt

• Paper jam

• Main Board failure (Motor driver failure)

• CR Encoder failure (contaminated/detached scale, Encoder Sensor failure)

• CR Motor failure

• CR Unit drive mechanism overload (paper jam, foreign object, insufficient grease, deformation of the Main Frame)

• Some part may be detached. (Paper Guide Upper Assy, Cap Assy)

• Cable disconnection

• Main Board failure (Motor driver failure)

• CR Encoder failure (contaminated/detached scale, Encoder Sensor failure)

• Main Board failure (Motor driver failure)

• CR Encoder failure (contaminated/detached scale, Encoder Sensor failure)

• Tooth skip of the CR Timing Belt

• Improper tension of the CR Timing Belt

• Paper jam

• Main Board failure (Motor driver failure)

• CR Motor failure

• CR Unit drive mechanism overload (paper jam, foreign object, Change Lever failure)

• Cable disconnection

• Main Board failure (Motor driver failure)

• PF Motor failure

• PF drive mechanism overload (paper jam, foreign object, insufficient grease, deformation of the Main Frame)

• Tooth skip of the PF Timing Belt

• Improper tension of the PF Timing Belt

• Cable disconnection

• Main Board failure (Motor driver failure)

• PF Encoder failure (contaminated/detached scale, Encoder Sensor failure)

• Tooth skip of the PF Timing Belt

• Improper tension of the PF Timing Belt

• Main Board failure (Motor driver failure)

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Table 1-3. Fatal Error List (Printer)

Error type

DC motor error

Motor drive time error

Printhead system error

Sequence error

Error

code

F3H PF PID reverse error

F4H PF PID lock error

F8H PF load position reverse error

F9H PF load position excess speed error

FAH PF load position excess load error

FCH PF load position error

D1H CR (PID) driving time error • Main Board failure (Firmware failure)

D2H CR (load position) driving time error

D3H PF (PID) driving time error • Main Board failure (Firmware failure)

D4H PF (BS) driving time error

40H Transistor temperature error • Main Board failure

41H X-Hot detect error (pre printing)

42H X-Hot detect error (after flushing)

43H Head temperature error

50H Home position error

56H

Contact error at ink replacement timing (Power-off)

Error name Possible cause

• PF Encoder failure (contaminated/detached scale, Encoder Sensor failure)

• Tooth skip of the PF Timing Belt

• Improper tension of the PF Timing Belt

• Paper jam

• Paper is pulled out from the ASF side when paper is fed

• Main Board failure (Motor driver failure)

• PF Encoder failure (contaminated/detached scale, Encoder Sensor failure)

• PF Motor failure

• PF drive mechanism overload (paper jam, foreign object, insufficient grease, deformation of the Main Frame)

• Cable disconnection

• Main Board failure (Motor driver failure)

• PF Encoder failure (contaminated/detached scale, Encoder Sensor failure)

• Tooth skip of the PF Timing Belt

• Improper tension of the PF Timing Belt

• PF Encoder failure (contaminated/detached scale, Encoder Sensor failure)

• Tooth skip of the PF Timing Belt

• Improper tension of the PF Timing Belt

• Main Board failure (Motor driver failure)

• PF Motor failure

• PF drive mechanism overload (paper jam, foreign object)

• Tooth skip of the PF Timing Belt

• Improper tension of the PF Timing Belt

• Cable disconnection

• PF Encoder failure (contaminated/detached scale, Encoder Sensor failure)

• PF Motor failure

• PF drive mechanism overload (paper jam, foreign object)

• Cable disconnection

• Change Lever failure

• CR Motor failure

• Main Board failure (Motor driver failure)

• Change Lever failure

• CR Motor failure

• Main Board failure (Motor driver failure)

• Printhead failure

• Main Board failure

• Foreign object

• Deformation of the Main Frame

• Change Lever failure

• Paper jam

• Foreign object

• Ink Cartridges are not installed correctly

• Paper jam

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Table 1-3. Fatal Error List (Printer)

Error type

Sequence error

Ink device error

Circuit error 80H Circuit error (include blowout of a fuse) • Main Board failure

Error

code

5BH Insoluble paper jam error

B0H -

CFH

Ink device error

Error name Possible cause

• Foreign object

• Deformation of the Main Frame

• Change Lever failure

• Paper jam

• Ink Cartridge failure

• Holder Board Assy failure (CSIC Terminal failure/CR Contact Module failure)

• Main Board failure

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Scanner Housing Lower

Rack section

1.3.3 Scanner Fatal Error Code

This section describes the scanner fatal error code and the possible cause for this product.

Table 1-4. Fatal Error List (Scanner)

Error code Error name Possible cause

10H Home position detection error

20H LED lightning error

• CIS Module failure

• Scanner Housing Upper failure (home seek pattern

• Scanner Housing Lower failure (the rack section

• Scanner Motor failure

• Insufficient grease

• Foreign object

• FFC disconnection/failure

• Main Board failure

• CIS Module failure

• Foreign object

• Scanner Housing Upper failure (white standard pattern

• Main Board failure

is dirty)

is damaged)

is dirty)

Note *1: The home seek pattern and the white standard pattern are attached on the back of the Scanner Housing Upper near the home

position.

*2: The rack section is the linearly-arranged toothed area on the Scanner Housing Lower. (See Fig. 1-3.)

Figure 1-3. Rack section

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CHAPTER 2

DISASSEMBLY/REASSEMBLY

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Before folding

Fold here

Clip

40 mm or more

After folding

Fold appropriate length

to hitch a spring.

Clip

2.1 Overview

In this chapter, the product names are called as follows:

 SX230 series: Epson Stylus TX235/Epson Stylus SX230/Epson ME OFFICE 535  SX235W series:

 SX430W series:

 SX440W series:

This chapter describes procedures for disassembling the main parts/units of SX230 series, SX235W series, SX430W series and SX440W series. Unless otherwise specified, disassembled parts/units can be reassembled by reversing the disassembly procedure. See the cautions or tips for disassembly/reassembly described in "2.3

Detailed Disassembly/Reassembly Procedure for each Part/Unit (p32)".

Read the "Safety Precautions(p3)" before disassembling and reassembling. When you have to remove units or parts that are not described in this chapter, see the exploded diagrams of SPI (Service Parts Information).

2.1.1 Tools

Epson Stylus NX230/Epson Stylus TX235W/Epson Stylus SX235W/ Epson Stylus TX230W

Epson Stylus NX330/Epson Stylus TX430W/Epson Stylus SX430W/ Epson Stylus SX435W/Epson ME OFFICE 570W

Epson Stylus NX430/Epson Stylus TX435W/Epson Stylus SX440W/ Epson Stylus SX445W

Use only specified tools to avoid damaging the printer.

Name Availability EPSON Part Code

(+) Phillips screwdriver #1 O 1080530

(+) Phillips screwdriver #2 O ---

Flathead screwdriver O ---

Flathead Precision screwdriver #1 O ---

Tweezers O ---

Longnose pliers O ---

Acetate tape --- 1003963

Note 1: Some of the tools listed above are commercially available.

2: EPSON provides the tools listed with EPSON part code.

2.1.2 Jigs

Name Quantity EPSON Part Code

Spring hook jig* 1 Can be made with a commercial item See " Making the Spring Hook Jig (p20)".

Thickness gauge (1.5 mm) 2 Commercially available

Thickness gauge (2.0 mm) 2 Commercially available

Sonic tension meter 1 1294120

Note *: If performing the disassembling/reassembling procedure is difficult using tweezers such as when reassembling " Cap Lever/Cap

Assy (p35)", the spring hook jig helps you to remove/attach the spring easier.

2.1.2.1 Making the Spring Hook Jig

Fold a clip (commercial item) as shown in Fig. 2-1.

Figure 2-1. Making the Spring Hook Jig

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2 3 4

Front

Right

Left

Rear

2.1.3 Locations of the Parts/Units

This section shows the locations of the main parts/units of SX230 series, SX235W series, SX430W series and SX440W series.

The parts/units which can not be seen in the following pictures are indicated in dotted lines ().

 Exterior parts

No. Name No. Name

1 Housing Rear (p27)

2 Tray Front Assy (p27)

3 Frame Base Assy (p28)

Panel Unit

• SX230 series / SX430W series (p 28)

Panel Board (p29) / Panel Buttons (p29) / LCD (p29) / Panel Housing Upper Assy (p29) / Panel Housing

Lower Assy (p29)

• SX235W series (p 28)

Panel Board Assy (p28) / Panel Buttons (p28) / Panel Housing Upper Assy (p28) / Panel Housing Lower Assy (p28)

• SX440W series (p 28)

5 Hinge (p27)

6 Housing Right (p27)

7 Scanner Unit (p27)

8 Housing Left (p27)

Panel Board w/ Touch Panel (p28)/Panel Housing Upper Assy (p28)/Panel Housing Lower Assy (p28)

Paper Support Assy (p27)

Figure 2-2. Exterior Parts

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8 9 11 12

6 7 8 9

321

 Printer mechanism

No. Name No. Name

1 CR Driven Pulley (p28) 7 CR Unit (p30)

2 CR Scale (p28) 8 PF Roller Unit (p30)

3 CR Timing Belt (p30) 9 Star Wheel Holder Assy (p27)

4 Printhead (p27) 10 Paper Guide Front Unit (p27)

5 CR Encoder Sensor (p30) 11 Paper Guide Lower Porous Pad (p27)

6 Holder Board Assy (p27) 12 Paper Guide Upper Assy (p30)

Figure 2-3. Printer Mechanism: Front

No. Name No. Name

1 LD Roller Cover (p28) 6 Cap Lever (p27)

2 LD Roller Assy (p28) 7 Cap Assy (p27)

3 Hopper (p28) 8 Porous Pad for Cap Assy (p27)

4 Retard Roller Assy (p27) 9 Pump Unit (p30)

5 Paper Back Lever (p27)

Figure 2-4. Printer Mechanism: Right

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5 6

4 5 6

No. Name No. Name

Wireless LAN Module (p27)

(SX235W series / SX430W series / SX440W series only)

PF Scale (p29)

2 EJ Roller (p27) 6 PF Encoder Sensor (p29)

3 PF Motor Assy (p30) 7 EJ Roller Gear (p27)

PF Timing Belt (p29)

Card Slot Board (p27)

(SX230 series / SX430W series / SX440W series only)

Figure 2-5. Printer Mechanism: Left

No. Name No. Name

1 CR Motor (p28) 4 Waste Ink Pad Assy (p27)

2 Head FFC (p30) 5 PE Sensor Lever (p28)

3 Main Board (p28) 6 PS Unit (p27)

Figure 2-6. Printer Mechanism: Rear

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2.1.4 Standard Operation Time for Servicing the Product

The following are the standard operation time for servicing the product. This standard operation time was determined with the MTTR result measured using the prototype of SX430W series which have the most functions. For other models described in this manual, perform the repair work referring to this standard operation time though the time varies due to the structural difference between models.

The underlined parts/units are supplied as After Service Parts.

Table 2-1. Standard Operation Time

Time (mm:ss)

Parts/Unit

Replacement

Adjustment/

inspection

Total

Housing rear

Paper Support Assy

Tray Front Assy

Document Cover

Document Mat 0:23 --- 0:23

Star Wheel Holder Assy

Paper Guide Front Unit

Paper Guide Lower Porous Pad

FFC Cover Outer 0:10 --- 0:10

Holder Board Assy

FFC Cover Inner 0:12 --- 0:12

Print Head

Waste Ink Pad Assy

Paper Back Lever

Retard Roller Assy

Scanner Unit

Scanner Housing Upper 3:04 --- 3:04

CIS Module Unit 3:25 --- 3:25

CIS Module 3:38 --- 3:38

Spacer 3:38 --- 3:38

Scanner Carriage Unit 3:50 --- 3:50

Scanner Carriage 4:45 --- 4:45

Scanner Motor 7:02 2:07 9:09

CIS Holder Unit 7:02 --- 7:02

Scanner Housing Lower 3:50 --- 3:50

Housing Left

PS Unit

Card Slot Board

Wireless LAN Module

PF Encoder Sensor

PF Scale

PF Driven Pulley Assy 3:57 1:00 4:57

PF Timing Belt 4:09 1:00 5:09

3:27 --- 3:27

3:17 --- 3:17

0:36 --- 0:36

0:12 --- 0:12

0:13 2:32 2:45

0:10 --- 0:10

0:33 4:10 4:43

0:37 8:47 9:24

0:46 0:16 1:02

1:11 --- 1:11

2:49 14:40 17:29

0:29 0:16 0:45

1:39 --- 1:39

1:47 0:44 2:31

1:33 2:07 3:40

2:31 --- 2:31

3:00 0:58 3:58

3:07 --- 3:07

3:22 --- 3:22

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Table 2-1. Standard Operation Time

Time (mm:ss)

Parts/Unit

EJ Roller Gear 2:45 --- 2:45

EJ Roller

Hinge 1:49 --- 1:49

Housing Right

Cap Assy

Cap Lever 3:19 --- 3:19

Porous Pad for Cap Assy 3:10 --- 3:10

Panel Unit

Panel Housing Lower Assy 5:12 --- 5:12

Panel Board Assy 5:41 --- 5:41

Panel Board 5:44 --- 5:44

LCD 5:48 --- 5:48

Panel Buttons 6:18 --- 6:18

Panel Housing Upper Assy 6:18 --- 6:18

CR Scale

Hopper

LD Roller Cover 3:50 --- 3:50

LD Roller Assy

FFC Holder MB 4:17 --- 4:17

Shield Plate 7:04 --- 7:04

CR Motor

PE Sensor Lever

EEPROM Data copy OK 7:45 1:29 9:14

Main Board

EEPROM Data copy NG 7:45 16:37 24:22

CR Driven Pulley 3:44 1:00 4:44

Main Frame Assy 8:02 12:35 20:37

Paper Guide Upper Assy

CR Unit

CR Timing Belt 13:01 1:00 14:01

CR Encoder Sensor 13:08 --- 13:08

FFC Holder 13:15 --- 13:15

Head FFC

Frame Base Assy 8:02 10:38 18:40

Pump Unit 9:48 --- 9:48

PF Grounding Spring 9:56 --- 9:56

Spur Gear 16.5 9:58 --- 9:58

PF Roller Unit 10:30 6:10 16:40

PF Motor Assy 11:10 1:27 12:37

Frame Base 11:10 7:28 18:38

Replacement

3:27 4:10 7:37

2:03 --- 2:03

3:03 --- 3:03

4:19 --- 4:19

3:53 --- 3:53

3:53 5:28 9:21

4:24 0:44 5:08

7:52 0:31 8:23

8:34 0:44 9:18

14:08 8:31 22:39

12:47 9:47 22:34

13:15 --- 13:15

Adjustment/

inspection

Total

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Housing Rear

(p22) (p43)

Frame Base Assy

---

(p21) (p27)

Paper Guide

Upper Assy (p29)

CR Timing Belt FFC/ Cable *5

Shows necessary procedures before removing the following parts.*

Black letters indicate a part/ unit not supplied as an ASP.

Item Description Reference

Parts/unit name

White-letter

Part/unit supplied as an ASP ---

Black-letter

Part/unit not supplied as an ASP ---

Icon

Indicates a practice or condition that could result in injury or loss of life if not strictly observed.

Indicates the reference page in blue-letter

Indicates a practice or condition that could result in damage to, or destruction of equipment if not strictly observed.

Indicates the reference page in blue-letter

Indicates the parts that are inevitably broken in the disassembling procedure, and should be replaced with a new one for reassembly.

Indicates the reference page in blue-letter

Indicates necessary check items in the disassembling/ assembling procedure.

Indicates the reference page in blue-letter

Indicates supplementary explanation for disassembly is given.

Indicates the reference page in blue-letter

Indicates particular tasks to keep quality of the units are required.

Indicates the reference page in blue-letter

Indicates particular routing of cables is required.

Indicates the reference page in blue-letter

Indicates particular adjustment(s) is/are required.

Chapter 3 " Adjustment (p41)"

Indicates lubrication is required.

Chapter 4 " Maintenance (p52)"

Indicates the number of screws securing the parts/ units.

---

Indicates the points secured with other than a screw such as a hook, rib, dowel or the like.

---

White letters indicate a part/unit supplied as an ASP.

Shows the screw types and the specified torque on the “Screw type/torque list”.

Reference page

Shows removal/installation as a unit/assy. is available.

The name enclosed in gray indicate a part/unit that must be removed on the way to the target parts.

Note "*": The box with only part names means the removal of the parts. If the name of

FFC or a cable is shown, disconnect the FFC or cable from the connector.

Shows the procedure number on the “FFC/ cable list”.

2.2 Disassembly/Reassembly Procedures

This section describes procedures for disassembling the parts/units in a flowchart format. For some parts/units, detailed procedures or precautions are provided (accordingly indicated by icons and cell's color). Refer to the explanations in the example chart below and perform an appropriate disassembling and assembling procedure. (See "2.3 Detailed Disassembly/Reassembly Procedure for each Part/Unit (p32) ".) For routing cables, see "2.4 Routing FFCs/cables (p38)".

The example below shows how to see the charts on the following pages.

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2.2.1 Disassembly Flowchart

START

Housing Rear

(p 32)

 Scanner FFC (CN11)  Ferrite core

Scanner Unit

(p 41)

Housing Left

(p 32)

Paper Support

Assy

---

Tray Front Assy

---

(p 41)

Document Cover

---

Document Mat

---

(p 32)

Star Wheel

Holder Assy

(p 35) (p 41)

Paper Guide

Front Unit

(p 34, p 35)

(p 41)

FFC Cover Outer

---

(p 37)

Waste Ink Pad

Assy

(p 32) (p 41)

 CSIC FFC  Extension Spring (x2)

FFC Cover Inner

---

(p 37)

(p 29)

FFC Holder

(p 39)

---

Paper Guide

Lower Porous

Pad

(p 35) (p 41)

Hinge

---

Holder Board

Assy

---

FFC Cover Inner

(p27)

---

Paper Back

Lever

(p 52)

Retard Roller

Assy

---

Printhead

(p 41)

---

 Cable (CN501)  Cable (CN9)

Hinge (p27)

Housing Right

(p27)

(p 28)

PS Unit

---

(p 32) (p 40)

(p 41)

Card Slot Board

(p 39)

---

EJ Roller Gear

(p 34) (p 52)

Star Wheel

Holder Assy

EJ Roller

(p 41) (p 52)

The following parts can be replaced without removing the Scanner Unit. However, the working space for replacement is narrow and dark. Therefore, if you find it difficult to work, remove the Scanner Unit first before replacement.

 Printhead/Holder Board Assy

 Star Wheel Holder Assy

 Paper Guide Front Unit/Paper Guide Lower Porous Pad

(p27)

(p 36) (p 41)

Wireless LAN

Module

---

(p 37)

---

(p 29)

Housing Right

(p 32)

 Extension Spring (×2)  Pump Tube

---

SX430W series/SX235W series/ SX440W series specific parts/unit

SX430W series/SX230 series/ SX440W series specific parts/unit

Common parts/unit

---

Cap Assy

---

Porous Pad for

Cap Assy

---

(p 35)

Cap Lever

---

(p 35)

Screw type/torque list

Symbol Screw Type Torque

C.B.P-TITE SCREW 2.5x8 F/ZN-3C 3 ± 1 kgf·cm

C.B.P-TITE SCREW 2x8 F/ZN-3C 4 ± 1 kgf·cm

S10

C.B.P-TITE SCREW 3x10 F/ZN-3C 5

C.B.P-TITE SCREW 3x10 F/ZN-3C 6 ± 1 kgf·cm

C.B.S-TITE SCREW 3x6 F/ZN-3C 4

C.B.S-TITE SCREW 3x6 F/ZN-3C 6 ± 1 kgf·cm

C.B.S-TITE SCREW 3x8 F/ZN-3C 6

C.P SCREW 3x4 F/ZN-3C 4 ± 1 kgf·cm

C.P.F.B-TITE SCREW 2x8 F/ZN-3C 4

C.P.S-TITE (P2) SCREW 3x6 F/ZN-3C 7 ± 1 kgf·cm

± 1 kgf·cm

± 0.5 kgf·cm

± 1 kgf·cm

Flowchart 2-1. Disassembly Flowchart (1)

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(p 27)

PF Encoder

Sensor (p29)

PF Scale (p29)

CR Scale (p28)

CR Driven

Pulley (p28)

LD Roller Cover

(p28)

 FFC/Cable* 2  Extension Spring (x3)

Main Frame Assy

S4 S6

(p 36) (p 41)

(p 52)

Frame Base Assy

(p 41)

When the CR Unit or the Head FFC is removed from the Main Frame Assy, remove the following parts before removing the Main Frame Assy.

 FFC Cover Inner

 FFC Cover Outer

 Holder Board Assy

 Printhead

---

 FFC/Cable* 1

Panel Unit

(p 33) (p 38)

(p 52)

 FFC/Cable* 1

Panel Unit

---

(p 29)

(p 33) (p 38)

(p 52)

Panel Housing

Lower Assy

(p 30)

(p 33) (p 38)

 FFC/Cable* 1

Panel Unit

(p 33) (p 38)

(p 52)

---

Panel Housing

Lower Assy

(p 33) (p 38)

 Extension Spring

LD Roller Cover

---

Paper Support

Assy (p27)

Hopper

(p 41)

CR Scale

---

(p 32)

LD Roller Cover

(p28)

FFC Holder MB

(p29)

 CR Timing Belt

CR Driven Pulley

---

(p 41) (p 52)

SX430W series/SX230 series specific parts/unit

SX235W series specific parts/unit

SX440W series specific parts/unit

Common parts/unit

 FFC/Cable* 8

Panel Board Assy

---

(p 30)

(p 38)

Panel Buttons

---

Panel Housing

Upper Assy

---

 Extension Spring

---

Panel Board

w/ Touch Panel

(p 34) (p 38)

Panel Housing

Upper Assy

(p 34)

LD Roller Assy

(p28)

PE Sensor Lever

(p 41)

LD Roller

Assy

---

(p 34) (p 41)

(p 52)

---

 FFC/Cable* 3

Shield Plate

---

FFC/cable list

---

No. FFC/Cable No. FFC/Cable

Remove/disconnect the following.

 Panel FFC (CN2)

(double-sided tape)

 Grounding wire

(screw x1)

Remove/disconnect the following.

 Head FFC (CN102)

 CSIC FFC (CN6)  PF Motor cable (CN13)  PS Unit cable (CN501)

Remove/disconnect all FFCs/ cables.

 Panel FFC (CN2)

---

(double-sided tape)

 Grounding wire

(screw x1)

 Card Slot Board cable (CN9)  PF Motor cable (CN13)  PS Unit cable (CN501)

 FFC/Cable* 4  CR Timing Belt

 FFC/Cable* 5

 CR Motor cable (CN12)

Release the CR Motor cable

from the hooks of the Main Frame and Frame Base.

Screw type/torque list

Main Board

---

(p 34) (p 38)

(p 41)

CR Motor

(p 39) (p 41)

Symbol Screw Type Torque

---

S10

C.B.P-TITE SCREW 2.5x8 F/ZN-3C 3 ± 1 kgf·cm

C.B.P-TITE SCREW 2x8 F/ZN-3C 4 ± 1 kgf·cm

C.B.P-TITE SCREW 3x10 F/ZN-3C 5

± 1 kgf·cm

C.B.P-TITE SCREW 3x10 F/ZN-3C 6 ± 1 kgf·cm

C.B.S-TITE SCREW 3x6 F/ZN-3C 4

± 0.5 kgf·cm

C.B.S-TITE SCREW 3x6 F/ZN-3C 6 ± 1 kgf·cm

C.B.S-TITE SCREW 3x8 F/ZN-3C 6

± 1 kgf·cm

C.P SCREW 3x4 F/ZN-3C 4 ± 1 kgf·cm

C.P.F.B-TITE SCREW 2x8 F/ZN-3C 4

± 1 kgf·cm

C.P.S-TITE (P2) SCREW 3x6 F/ZN-3C 7 ± 1 kgf·cm

Flowchart 2-2. Disassembly Flowchart (2)

Disassembly/Reassembly Disassembly Flowchart 28

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Epson Stylus SX230 series / SX235W series / SX430W series / SX440W series Revision B

Scanner Housing

Upper

(p 32)

 FFC/Cable* 6

Scanner Carriage

Unit

(p 40)

Scanner Housing

Lower

(p 40) (p 52)

(p 27)

 Panel FFC* 7

FFC Holder MB

---

PF Grounding

Spring

(p 37)

Panel Housing

Lower Assy

---

(p 33) (p 38)

 FFC/Cable* 8

Panel Board Assy

---

Panel Buttons

Panel Housing

Upper Assy

 PF Encoder FFC

 Scanner FFC

PF Encoder

Sensor

(p 36) (p 40)

---

CIS Module Unit

---

CIS Module Unit

(p29)

 Scanner FFC

---

Scanner Carriage

---

Spacer

---

(p 40) (p 52)

Scanner Motor

CIS Module

---

PF Scale

---

(p 36)

PF Driven Pulley

Assy

S10

(p 35) (p 41)

PF Timing Belt

---

(p 40) (p 41)

---

(p 35) (p 41)

CIS Holder Unit

---

(p 52)

(p 38)

(p 34)

(p 37)

(p 28)

---

 FPC

Panel Board

---

LCD

---

SX430W series/SX230 series specific parts/unit

Common parts/unit

FFC/cable list

No. FFC/Cable

Remove the double-sided tape (x1) and release the Scanner FFC.

7 Disconnect the Panel FFC (CN2), and remove the ferrite core.

 Panel FFC (CN1)

 Grounding wire (screw x1)

Screw type/torque list

Symbol Screw Type Torque

C.B.P-TITE SCREW 2.5x8 F/ZN-3C 3 ± 1 kgf·cm

C.B.P-TITE SCREW 2x8 F/ZN-3C 4 ± 1 kgf·cm

S10

C.B.P-TITE SCREW 3x10 F/ZN-3C 5

C.B.P-TITE SCREW 3x10 F/ZN-3C 6 ± 1 kgf·cm

C.B.S-TITE SCREW 3x6 F/ZN-3C 4

C.B.S-TITE SCREW 3x6 F/ZN-3C 6 ± 1 kgf·cm

C.B.S-TITE SCREW 3x8 F/ZN-3C 6

C.P SCREW 3x4 F/ZN-3C 4 ± 1 kgf·cm

C.P.F.B-TITE SCREW 2x8 F/ZN-3C 4

C.P.S-TITE (P2) SCREW 3x6 F/ZN-3C 7 ± 1 kgf·cm

± 1 kgf·cm

± 0.5 kgf·cm

± 1 kgf·cm

Flowchart 2-3. Disassembly Flowchart (3)

Disassembly/Reassembly Disassembly Flowchart 29

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Epson Stylus SX230 series / SX235W series / SX430W series / SX440W series Revision B

(p 28) (p 28)

4 5

Cap Assy (p27)

Shield Plate

(p28)

Main Board

(p28)

PE Sensor Lever

(p28)

Paper Guide

Upper Assy

(p 41)

 Pump Tube

Pump Unit

CR Motor (p28)

 FFC/Cable* 9

CR Unit

---

(p 39) (p 41)

FFC Holder

(p27)

Head FFC

---

Antistatic Cloth

---

CR Timing Belt

(p 41)

---

(p 36)

PF Grounding

Spring (p29)

Spur Gear 16.5

CR Encoder

Sensor

---

Paper Guide

Front Unit (p27)

---

EJ Roller Gear

---

(p 39)

(p27)

PF Driven Pulley

Assy (p29)

PF Timing Belt

(p29)

PF Roller Unit

---

(p 41) (p 52)

PF Motor Assy

(p 40) (p 41)

---

Frame Base

---

(p 41) (p 52)

Flowchart 2-4. Disassembly Flowchart (4)

FFC/cable list

No. FFC/Cable

 Disconnect the CR Encoder FFC.

 Pull out the Head FFC from the hole of the CR Unit.

Screw type/torque list

Symbol Screw Type Torque

C.B.P-TITE SCREW 2.5x8 F/ZN-3C 3 ± 1 kgf·cm

C.B.P-TITE SCREW 2x8 F/ZN-3C 4 ± 1 kgf·cm

S10

C.B.P-TITE SCREW 3x10 F/ZN-3C 5

C.B.P-TITE SCREW 3x10 F/ZN-3C 6 ± 1 kgf·cm

C.B.S-TITE SCREW 3x6 F/ZN-3C 4

C.B.S-TITE SCREW 3x6 F/ZN-3C 6 ± 1 kgf·cm

C.B.S-TITE SCREW 3x8 F/ZN-3C 6

C.P SCREW 3x4 F/ZN-3C 4 ± 1 kgf·cm

C.P.F.B-TITE SCREW 2x8 F/ZN-3C 4

C.P.S-TITE (P2) SCREW 3x6 F/ZN-3C 7 ± 1 kgf·cm

± 1 kgf·cm

± 0.5 kgf·cm

± 1 kgf·cm

Disassembly/Reassembly Disassembly Flowchart 30

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Epson Stylus SX230 series / SX235W series / SX430W series / SX440W series Revision B

2.2.2 Disassembly Flowchart (Printhead/Main Board)

 Printhead

START

FFC Cover Outer

(p 37)

 CSIC FFC

CR Contact

Module

---

FFC Cover Inner

(p 37)

Printhead

(p 36) (p 41)

 Main Board

START

 FFC/Cable* 11

Shield Plate

---

 FFC/Cable* 12

Main Board

(p 34) (p 38)

(p 41)

---

FFC/cable list

No. FFC/Cable

10 Disconnect the Panel FFC (CN2), and remove the ferrite core.

Remove/disconnect the following.  FFC (CN102, CN6)

 PF Motor cable (CN13)  PS Unit cable (CN501)

12 Remove/disconnect all FFCs/cables.

---

Housing Rear

(p 32)

 Scanner FFC (CN11)  Ferrite core

Housing Right

(p 32)

Paper Support

Assy

---

Scanner Unit

---

Hopper

---

Housing Left

(p 32)

 FFC/Cable* 10

(p 41)

FFC Holder MB

Hinge

---

Screw type/torque list

Symbol Screw Type Torque

C.B.P-TITE SCREW 2.5x8 F/ZN-3C 3 ± 1 kgf·cm

C.B.P-TITE SCREW 2x8 F/ZN-3C 4 ± 1 kgf·cm

The Printhead can be replaced without removing the Scanner Unit. However, the working space for replacement is narrow and dark. Therefore, if you find it difficult to work, remove the Scanner Unit first before replacement.

S10

C.B.P-TITE SCREW 3x10 F/ZN-3C 5

C.B.P-TITE SCREW 3x10 F/ZN-3C 6 ± 1 kgf·cm

C.B.S-TITE SCREW 3x6 F/ZN-3C 4

C.B.S-TITE SCREW 3x6 F/ZN-3C 6 ± 1 kgf·cm

C.B.S-TITE SCREW 3x8 F/ZN-3C 6

C.P SCREW 3x4 F/ZN-3C 4 ± 1 kgf·cm

C.P.F.B-TITE SCREW 2x8 F/ZN-3C 4

C.P.S-TITE (P2) SCREW 3x6 F/ZN-3C 7 ± 1 kgf·cm

± 1 kgf·cm

± 0.5 kgf·cm

± 1 kgf·cm

Flowchart 2-5. Disassembly Flowchart (Printhead/Main Board)

Disassembly/Reassembly Disassembly Flowchart (Printhead/Main Board) 31

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Epson Stylus SX230 series / SX235W series / SX430W series / SX440W series Revision B

Document Mat

Document Cover

Reference (origin) position

Double-sided tape

Reference position: Align the Document Mat with the front right corner of the document glass. Make sure the gap in yellow above must be less than 1 mm.

C.B.P-TITE SCREW 3x10 F/ZN-3C (6 ± 1 kgf·cm)

Rib

Scanner Housing Upper

C.B.P-TITE SCREW 3x10 F/ZN-3C (6 ± 1 kgf·cm)

Step 2

Section B

Section A

Section C

Step 3-4

Ink Position Label

Section D

Step 1

Housing Rear

Dowel Rib

Housing Rear

The section enclosed in red dotted line may be interfered with the Hopper or the Scanner Unit.

Housing Right

Housing Left

Black triangle mark

CR Unit

Slit of CR Encoder Sensor

CR Scale

Extension spring

C.B.P-TITE SCREW 3x10 F/ZN-3C (6 ± 1 kg·fcm)

Housing Right

Housing Left

Hook

PS Unit

Hook Rib

Bottom

Widen this rib to release the hook of PS Unit.

C.B.P-TITE SCREW 3x10 F/ZN-3C (6 ± 1 kgf·cm)

Hook and hole

Frame Base

Waste Ink Pad Assy

Bottom

Waste Ink Pad Assy

Rear

Rib and hole

2.3 Detailed Disassembly/Reassembly Procedure for each Part/Unit

Document Mat

When attaching the Document Mat to the Document Cover, follow the procedure below.

1. Attach double-sided tape on the two long sides of the Document Mat.

2. Place the mat on the document glass with double-sided tape attachment side upward while aligning it with the reference position of the document glass shown above.

3. Close the Document Cover and press the cover to stick the Document Mat to the Document Cover.

Scanner Housing Upper

When removing the Scanner Housing Upper from the Scanner Housing Lower Assy, follow the procedure below.

1. Remove the screws (x4) on the bottom of the Scanner Unit.

2. Release the ribs (x7) of the Scanner Housing Upper, and remove the Scanner Housing Upper in the direction of the arrow with the document glass upward.

Housing Rear

When removing the Housing Rear, follow the procedure below.

1. Remove the screw (x1) of the Housing Rear.

2. Press the section A on the Housing Left and release the dowels (x2) of the Housing Left from the Housing Rear, and lift the rear side of the Housing Rear slightly to release the section B from the Housing Left.

3. Pull and turn the section C of the Housing Rear slightly to the front to release it from the gap between the Housing Right and Frame Base.

4. Slide the Housing Rear in the direction of the arrow to release the section D, and remove the Housing Rear while avoiding the Hopper and Scanner Unit.

CR Scale

 Attach the CR Scale to the hook on the left of the Main Frame

with the black triangle mark upward.

 Make sure to put the CR Scale through the slit of the CR

Encoder Sensor.

Disassembly/Reassembly Detailed Disassembly/Reassembly Procedure for each Part/Unit 32

Housing Left/Housing Right

When releasing the hooks (x7) of the Housing Left/Housing Right, be careful not to damage the hooks (x7).

Release the hooks shown above when removing the Housing Left/ Housing Right.

PS Unit

Be careful not to damage the rib of the Frame Base when widen the rib to release the hook of the PS Unit.

When removing the PS Unit, follow the procedure below.

1. Using a precision screwdriver or the like, widen the rib of the Frame Base to release the hook of the PS Unit.

2. Remove the PS Unit from the Frame Base in the direction of the arrow while releasing the rib of the PS Unit.

3. Disconnect the PS Unit cable from the connector on the PS Unit and remove the PS Unit.

Waste Ink Pad Assy

When installing the Waste Ink Pad Assy, follow the procedure below.

1. Place the Waste Ink Pad Assy under the Frame Base.

2. Slide the Waste Ink Pad Assy in the direction of the arrow to align the hole of the Waste Ink Pad Assy with the hook of the Frame Base.

3. Confirm the following first, and then tighten the screw to secure the Waste Ink Pad Assy.

• The rib of the Waste Ink Pad Assy is correctly inserted into the hole of the Frame Base.

• The Waste Ink Pad Assy is secured firmly with the hook of the Frame Base.

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Epson Stylus SX230 series / SX235W series / SX430W series / SX440W series Revision B

Frame Base (left)

Rail section

Frame Base (right)

Rail section

Panel Unit

Panel Stand

Panel Unit

Hole Dowel

Hook

Inside Panel Unit

Panel Housing

Upper Assy

Panel Housing

Lower Assy

C.B.P-TITE SCREW 3x10 F/ZN-3C (6 ± 1 kgf·cm)

Back

Panel Unit

Hook

Inside Panel Unit

Panel Housing

Upper Assy

Panel Housing

Lower Assy

C.B.P-TITE SCREW 3x10 F/ZN-3C (6 ± 1 kgf·cm)

Back

Panel Unit

Hook

Inside Panel Unit

Panel Housing

Upper Assy

Panel Housing

Lower Assy

C.B.P-TITE SCREW 3x10 F/ZN-3C (6 ± 1 kgf·cm)

Back

Panel Unit

Panel Housing Lower Assy (SX230 series/SX430W series)

Be careful not to damage the hooks (x2) of the Panel Housing Upper Assy when releasing them.

When installing the Panel Unit, follow the procedure below.

1. Route the Panel FFC and grounding wire through the holes of the Frame Base. (p 38)

2. Insert the dowels (x2) of the Panel Stand into the grooves on both sides of the Frame Base from the sections indicated in the arrows shown above.

3. Insert the dowels (x2) of the Panel Unit into the holes (x2) of the Frame Base, and secure the Panel Unit to the Frame Base.

Panel Housing Lower Assy (SX235W series)

When removing the Panel Housing Lower Assy, follow the procedure below.

1. Remove the screws (x3) on the back of the Panel Unit.

2. Widen the upper side of the Panel Unit slightly to release the hook of the Panel Housing Lower Assy.

3. Release the hooks (x2) of the Panel Housing Upper Assy one by one, and remove the Panel Housing Lower Assy.

Panel Housing Lower Assy (SX440W series)

Disassembly/Reassembly Detailed Disassembly/Reassembly Procedure for each Part/Unit 33

Be careful not to damage the hooks (x2) of the Panel Housing Upper Assy when releasing them.

When removing the Panel Housing Lower Assy, follow the procedure below.

1. Remove the screws (x3) on the back of the Panel Unit.

2. Widen the upper side of the Panel Unit slightly to release the hooks (x2) of the Panel Housing Lower Assy.

3. Release the hooks (x2) of the Panel Housing Upper Assy one by one, and remove the Panel Housing Lower Assy.

Be careful not to damage the hooks (x2) of the Panel Housing Upper Assy when releasing them.

When removing the Panel Housing Lower Assy, follow the procedure below.

1. Remove the screws (x2) on the back of the Panel Unit.

2. Widen the upper side of the Panel Unit slightly to release the hook of the Panel Housing Lower Assy.

3. Release the hooks (x2) of the Panel Housing Upper Assy one by one, and remove the Panel Housing Lower Assy.

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Epson Stylus SX230 series / SX235W series / SX430W series / SX440W series Revision B

Select Button (back)

Rib

No rib here.

Start button

Stop ButtonSelect ButtonOK ButtonPower Button

Home Button

The side without any rib must be the side of down arrow.

Panel Housing Upper Assy

Rib

Positioning hole

Dowel

Panel Board Unit

Dowel and positioning hole

MAC Address Label

Shield Plate

Position of MAC Address Label

PE Sensor Lever

Main Board

PE Sensor

Dowel and positioning hole

C.B.P-TITE SCREW 3x10 F/ZN-3C (6 ± 1 kgf·cm)

Paper Guide Front

LD Roller Assy

Paper Back Lever

Change Lever

Cam

Main Frame

Rear of printer

LD Roller

LD Roller Shaft

Extension Spring

Clutch

Spur gear

EJ Roller Gear

Can not be reused because the rib of the EJ Roller Gear is deformed once removed from the EJ Roller.

Panel Buttons (SX230 series/SX430W series)

Panel Board w/Touch Panel (SX440W series)

Main Board

Do not damage or contaminate the MAC Address Label.

Paper Guide Front Unit

When attaching the Select Button to the Panel Housing Upper Assy, attach the Select Button with its side without any rib downward.

LD Roller Assy (1)

When installing the Panel Board Unit to the Panel Housing Upper Assy, insert the Panel Board Unit under the ribs (x3) of the Panel Housing Upper Assy, and then align the dowels (x2) of the Panel Housing Upper Assy with the positioning holes of the Panel Board Unit.

 Install the Main Board with the PE Sensor Lever to the rear.

After installing the Main Board, make sure the lever part of the PE Sensor Lever is aligned with the slit of the PE Sensor.

 Attach the MAC Address Label to the Shield Plate on the

position shown above.

LD Roller Assy (2)

 When installing the Paper Guide Front Unit, align the

positioning holes (x2) of the Paper Guide Front Unit with the dowels (x2) of the Frame Base.

 Tighten the screws in the order indicated in the figure above.

EJ Roller Gear

Disassembly/Reassembly Detailed Disassembly/Reassembly Procedure for each Part/Unit 34

Install the LD Roller Assy with the following condition in order to avoid the Change Lever and Paper Back Lever.

 Using a screw driver or the like, hold the Paper Back Lever to the rear as shown above not to let it touch the LD Roller Assy.  Push the Change Lever to the front to keep it in the hole of the Main Frame.

The rib on the contact point of the EJ Roller Gear with the EJ

Roller is deformed when removing the EJ Roller Gear. Therefore, If each part shown above comes off when removing the LD Roller Assy, attach them back in place as shown in the figure above.

make sure to replace it with a new one when removing it in order to

maintain the paper feed accuracy.

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Page 35

Epson Stylus SX230 series / SX235W series / SX430W series / SX440W series Revision B

Back

Leg

Paper Guide Front Porous Pad

Paper Guide Front Unit

No tab of the pad sticks

out on the frame.

A tab of the pad sticks

out on the frame.

Paper Guide Front Unit

Front

Enlarged figure: a leg of Paper

Guide Front Porous Pad

Anti-disconnect hooks

Paper Guide Front Porous Pad

Star Wheel Holder Assy

C.B.P-TITE SCREW 3x10 F/ZN-3C (6 ± 1 kgf·cm)

Paper Guide Lower Porous Pad

Frame Base

Rib

Cut Section

Pinion gear of PF Motor

Hook

PF Motor Frame

Dowel

Rib

PF Driven Pulley Assy

Protrusion

Compression Spring 5.07

Combination Gear 29.2,42

PF Timing Belt

PF Driven Pulley Assy

C.B.S-TITE(P2) SCREW 3x6 F/ZN-3C P.W. 3.4x0.43x7 (7 ± 1 kgf·cm)

Cap Lever

Extension Spring 1.329

Cap Assy

Extension Spring 0.65

Hook of Cap Assy

Hook of Frame Base

Step 6

Shaft BShaft A

Shaft C

Cap Assy

Step 2

Make sure the marking (10 ± 1 mm from the tube end) on the tube cannot be seen when viewed from the side.

Cap Slider

CutoutHole B

Cap Lever

Frame

Base

Hole A

Hole C

Step 1, 3-5

Hook of Frame Base

Hook of Cap Lever

Step 7

Paper Guide Front Porous Pad

When installing the Paper Guide Front Porous Pad, make sure to wipe off the grease attached on the Paper Guide Front Unit.

The Paper Guide Front Porous Pad is not included in the replacement parts when the maintenance error occurs.

Star Wheel Holder Assy

Paper Guide Lower Porous Pad

After installing the Paper Guide Front Porous Pad, make sure of the following.

 The entire anti-disconnect hooks on both ends of the legs (x4) of the Paper Guide Porous Pad should come out from the holes on the bottom of

the Paper Guide Front Unit.

 The tabs (x34) of the Paper Guide Front Porous Pad should be inserted completely into the grooves of the Paper Guide Front Unit.

 No parts of the Paper Guide Porous Pad are wavy or lift over the platen surface of the Paper Guide Front Unit.

PF Driven Pulley Assy / PF Timing Belt

Tighten the screws in the order indicated in the figure above.

Cap Lever/Cap Assy

 When installing the Paper Guide Lower Porous Pad, set it with

the cut section to the front right of the printer.

 Align the cutout of the Paper Guide Lower Porous Pad with the

rib of the Frame Base.

Do not hold the PF Driven Pulley Assy when securing it with the screw in order to prevent applying improper tension to the PF Timing Belt.

When installing the PF Driven Pulley Assy, follow the procedure below.

1. Align the rib of the PF Driven Pulley Assy with the hook of the PF Motor Frame, and install the PF Driven Pulley Assy.

2. Attach the Compression Spring 5.07 to the protrusion of the PF Driven Pulley Assy and the dowel of the PF Motor Frame.

3. Attach the PF Timing Belt in the order of the pinion gear of the PF Motor, PF Driven Pulley and Combination Gear 29.2,42.

4. Rotate the Combination Gear 29.2,42 clockwise three times to confirm the PF Timing Belt is correctly attached, and then secure the PF Driven Pulley Assy with the screw and washer to the PF Motor Frame.

When installing the Cap Lever/Cap Assy, follow the procedure below.

1. Attach the Cap Lever to the Frame Base, and attach one end of the Extension Spring 0.65 to the hook of the Frame Base.

2. Connect the tube of the Pump Unit to the joint on the bottom of the Cap Assy. Then, viewing from the side, confirm the marking (10 from the tube end) on the tube is covered by the Cap Slider.

3. Insert the shaft A of the Cap Assy through the hole of the Cap Lever to the hole A of the Frame Base.

4. Insert the shaft B of the Cap Assy through the cutout of the Frame Base and to the hole B of the Frame Base.

5. Insert the shaft C of the Cap Assy to the hole C of the Frame Base.

6. Using a “spring hook jig” (p 20), attach the other end of the Extension Spring 0.65 to the hook of the Cap Assy.

7. Attach the Extension Spring 1.329 to the hooks of the Cap Lever and Frame Base.

Disassembly/Reassembly Detailed Disassembly/Reassembly Procedure for each Part/Unit 35

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± 1 mm

Page 36

Epson Stylus SX230 series / SX235W series / SX430W series / SX440W series Revision B

Bottom of CR Unit

Protrusion of CR Unit

Section A

Star Wheel Holder Assy

C.B.P-TITE SCREW 2.5x8 F/ZN-3C (3 ± 1 kgf·cm)

Printhead

CR Unit (ink cartridge exchange position)

1 2

Ink cartridge exchange position: when the protrusion of the CR Unit is on the section A of the Star Wheel Holder Assy.

Do not remove/replace the Printhead other than under this condition in order to prevent the Main Frame from being deformed.

Star Wheel Holder Assy

Main Frame

Align the screw holes of Main

Frame and PF Motor Frame.

PF Motor Frame

Main Frame

Tighten screw while pressing Main

Frame in the direction of the arrow.

C.B.P-TITE SCREW 3x10 F/ZN-3C (6 ± 1 kgf·cm) C.B.S-TITE SCREW 3x6 F/ZN-3C (6 ± 1 kgf·cm)

Main Frame Assy

Change Lever must not

interfere with Main Frame.

Rib and groove

Positioning hole and dowel

Section A

PF Scale

PF Encoder Sensor

PF Roller

PF Encoder Sensor

PF Scale

PF Roller

Step 4 Pump

Tube B

Marking

8 ± 1 mm

Hole of Frame Base

Hole of

Frame Base

Pump

Tube A

Step 1-2

Pump Unit

Route Pump Tube A through ribs of Frame

Base with their dashed line facing upward.

Insert Pump Tube B up to the marking (8 ± 1 mm

from tube end) to the hole of Frame Base.

C.B.P-TITE SCREW 3x10 F/ZN-3C (6 ± 1 kgf·cm)

Step 3

Frame Base

Rib

Printhead

When removing/replacing the Printhead, be sure the CR Unit is at the “ink cartridge exchange position” shown above. Otherwise, the Main Frame may be deformed by applying force perpendicularly when tightening the screws and it may affect print quality.

The “ink cartridge exchange position” is also indicated by the Ink Position Label attached on the Housing Rear. See Housing Rear (p32) for the position of the Ink Position Label.

Tighten the screws of the Printhead in the order indicated in the figure above while pressing the Printhead in the direction of the arrow.

Main Frame Assy

 Before installing the Main Frame Assy, shift the Change Lever back to the rear.

 When installing the Main Frame Assy, make sure of the following.

• The Change Lever must not interfere with the Main Frame.

• The above shown ribs and grooves, positioning holes and dowels are correctly aligned.

• The section A of the Main Frame Assy is not deformed.

 Tighten the screws in the order indicated in the figure above.

PF Encoder Sensor/ PF Scale

Do not reuse the removed PF Scale and make sure to replace it with a new one when removing it. When installing the PF Scale, it is pressed into the PF Roller, therefore, the removed one is deformed. If it is re-installed to the printer, it does not rotate properly and the paper feed accuracy may be reduced.

 When installing the PF Scale to the PF Roller, press the PF Scale into the PF Roller vertically.  After installing the PF Encoder Sensor, confirm the PF Scale does not touch the PF Encoder Sensor.

Disassembly/Reassembly Detailed Disassembly/Reassembly Procedure for each Part/Unit 36

When installing the Pump Unit, follow the procedure below in order to prevent ink suction failure.

1. Route the Pump Tube A through the hole of the Frame Base.

2. Install the Pump Unit to the Frame Base, and route the Pump Tube A through the ribs of the Frame Base with their dashed line facing upward.

3. Secure the Pump Unit to the Frame Base with the screw (x1).

4. Route the Pump Tube B through the ribs of the Pump Unit and Frame Base, and insert it to the hole of the Frame Base up to the marking

± 1 mm from tube end).

Pump Unit

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Page 37

Epson Stylus SX230 series / SX235W series / SX430W series / SX440W series Revision B

Left side of CR Unit

FFC Cover Outer

Inside CR Unit

FFC Cover Inner

Rib and hole

Hook

Rib

Panel Housing Upper Assy

Insert spring leg

A into groove.

PF Grounding

Spring

Left

Main Frame

Spring leg B

Cutout

PF Grounding

Spring

Spring leg B

Spring leg A

Frame Base

Assy

Hole

Back

Wireless LAN Module Cable

Cover with acetate tape (x2).

Wireless LAN Module

Wireless LAN Module Cable

FFC Cover Outer/FFC Cover Inner

 Slide and remove the FFC Cover Outer in the direction of the

arrow while releasing the hook.

 When removing the FFC Cover Inner, release the hook first,

and then lift it in the direction of the arrow while disengaging the rib of it from the hole of the CR Unit.

Panel Housing Upper Assy (SX230 series/SX430W series)

When attaching the LCD to the Panel Housing Upper Assy, the LCD is secured with the ribs of the Panel Housing Upper Assy which are ground by the positioning holes on the Shield Plate of the LCD. Therefore, the ribs become smaller than the positioning holes when removing the LCD and can not hold the LCD securely. Once the LCD is removed from the Panel Housing Upper Assy, be sure to replace the Panel Housing Upper Assy with a new one.

PF Grounding Spring

When installing the PF Grounding Spring, follow the procedure below.

1. From the left side of the printer, insert the spring leg A of the PF Grounding Spring into the hole of the Frame Base.

2. Insert the spring leg B of the PF Grounding Spring into the groove of the Frame Base.

3. Attach the spring leg B of the PF Grounding Spring to the cutout of the Main Frame to install the PF Grounding Spring.

Wireless LAN Module

(SX235W series/SX430W series/SX440W series)

Attach two pieces of acetate tape on the Wireless LAN Module cable to cover the cable to protect it as shown above.

Disassembly/Reassembly Detailed Disassembly/Reassembly Procedure for each Part/Unit 37

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Ferrite core A

Ferrite core B

Panel FFC

PF Motor cable

PS Unit cable

Card Slot Board cable

CR Motor

cable

Main Board

CN12

CN6

CN102

Head FFC

CSIC FFC

Right side of Main Board

Wireless LAN

Module cable

PF Encoder FFC

CN11

CN2

CN9

CN4

CN7

CN13

CN501

Left side of Main Board

FFC Holder MB

Housing Left

Route Scanner

FFC through Hole

of Housing Left.

Panel FFC

Panel Board

Panel Housing Lower Assy

SX235W series

Panel FFC

Panel Board

Panel Housing Lower Assy

SX230 series/SX430W series

Grounding wire

C.B.P-TITE SCREW 3x10 F/ZN-3C (6 ± 1 kgf·cm)

Panel FFC

Grounding wire

(SX230 series/SX430W series only)

Hole of Panel Housing Lower Assy

Pull out grounding

wire from here.

Hole

Frame Base

Panel Stand

Panel FFC

Hole for

grounding wire

Hole for

Panel FFC

Grounding wire

(SX230 series / SX430W series only)

Rib

Panel FFC

Frame Base Panel Unit

Double-sided tape

Grounding wire

Hole A

C.B.S-TITE SCREW 3x6 F/ZN-3C (6 ± 1 kgf·cm)

Panel FFC

Frame Base

Panel Unit

Hole A

Grounding wire

(SX230 series / SX430W series only)

Panel FFC

Grounding wire

Hole of Panel Housing Lower Assy

Pull out grounding

wire from here.

Panel FFC

Panel Board Unit

Panel Housing Lower Assy

Acetate tape

Grounding wire

C.B.S-TITE SCREW 3x6 F/ZN-3C (6 ± 1 kgf·cm)

2.4 Routing FFCs/cables

Main Board

Connect the following cables/FFCs to the Main Board as shown in the figure above.

• CSIC FFC (CN6) • Head FFC (CN102) • CR Motor cable (CN12)

• PF Motor cable (CN13) • PS Unit cable (CN501) • PF Encoder FFC (CN7)

• Wireless LAN Module cable (CN4: SX235W series/SX430W series only)

•Panel FFC (CN2) Attach the ferrite core A to the FFC Holder MB, and route the FFC through the ferrite core A and connect it to the Main Board.

• Scanner FFC (CN11) Attach the ferrite core B to the FFC Holder MB, and route the FFC through the hole of the Housing Left and the ferrite core B, and then connect it to the Main Board.

• Card Slot Board cable (CN9:SX230 series/SX430W series only)

Inside the Panel Unit (SX230 series/SX235W series/SX430W series)

 Route the Panel FFC through the hole of the Panel Housing Lower Assy with its terminal side upward as shown in the figure above.

 Fold the Panel FFC aligning it with its folded lines, and then connect the FFC to the connector (CN1) on the Panel Board firmly.  Secure the grounding wire to the Panel Board with the screw, and pull it out from the hole of the Panel Housing Lower Assy.

(SX230 series/SX430W series only)

Panel Unit (1)

 Route the Panel FFC and grounding wire

only)

• Route the Panel FFC through the hole of the Frame Base as shown

• Pull out the grounding wire from the hole of the Frame Base shown

 Before installing the Panel Unit, make sure that the Panel FFC is routed

correctly without any part getting caught.

Disassembly/Reassembly Routing FFCs/cables 38

as follows before installing the Panel Unit.

above with the side with the stiffener upward.

above.

(SX230 series / SX430W series only)

(SX230 series / SX430W series

After installing the Panel Unit, route the Panel FFC and grounding wire pulled out from the hole of the Frame Base as follows.

 Route Panel FFC through the ribs (x2) of the Frame Base and Main Frame

with folded along the fold line, and then secure it with double-sided tape on the position shown in the figure above.



Route the grounding wire through the hole A of the Frame Base, and secure it to the Main Frame with the screw.(SX230 series / SX430W series only)

Panel Unit (2)

Inside the Panel Unit (SX440W series only)

 Route the Panel FFC through the hole of the Panel Housing Lower Assy with its side with the stiffener upward as shown in the figure above.

 Fold the Panel FFC aligning it with its folded lines and attach acetate tape as shown above, and then connect the FFC to the connector (CN1) on the Panel

Board firmly.

 Secure the grounding wire to the Panel Board with the screw, and pull it out from the hole of the Panel Housing Lower Assy.

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Epson Stylus SX230 series / SX235W series / SX430W series / SX440W series Revision B

Frame Base

Main Board

PF Scale

Rib

Card Slot Board

cable

CN3

Card Slot Board cable

Aligning Head FFC with CSIC FFC

Head FFC

CSIC FFC

Stack the Head FFC over the CSIC

FFC to keep the Head FFC on top.

Fold here inside FFC Holder

Rear

FFC Holder

Head FFC/CSIC FFC

Main Frame

FFC Holder

Head FFC/CSIC FFC

Head FFC

Printhead

Inside CR Unit

Connector of Printhead

CSIC FFC Head FFC

CR Unit

Connector of CR Encoder

Connector of CR

Contact Module

Put Head FFC

over CSIC FFC

Hole of CR Unit

Left side of CR Unit

CR Motor

Hook C

Hook EGroove of FFC HolderCR Motor cable Hook D

Rib A

CR Motor cable (black)

CR Motor cable (red)

Rib B

Card Slot Board (SX230 series/SX430W series/SX440W series)

Head FFC (1)

 When routing the Card Slot Board cable, be careful not to damage the PF Scale.  Route the Card Slot Board cable through the ribs (x4) of the Frame Base.

 Connect the connectors on both ends of the Card Slot Board cable to the Card Slot Board (CN3) and Main Board (CN9) firmly. (p 38)

Head FFC (2)

Align the Head FFC and CSIC FFC, and then route them through the FFC Holder as shown in the figure above.

CR Motor

 Route the Head FFC and CSIC FFC through the CR Unit as shown in the figure above, and then connect them to the Printhead, CR Encoder Sensor and

Holder Board Assy.

 Be careful not to damage the Head FFC when routing it through the hole of the CR Unit.

Disassembly/Reassembly Routing FFCs/cables 39

Route the CR Motor cable as follows before installing the Shield Plate.

1. Route the CR Motor cable (black) around the rib A of the Frame Base (two turns).

2. Route the CR Motor cable (red) through the rib B of the Frame Base, and then route it through the rib A taking care not to let the CR Motor cable (red) come over the CR Motor cable (black).

3. Twist the CR Motor cable (black) and CR Motor cable (red) twice, and then route them through the hook C of the Main Frame.

4. Route the CR Motor cable (black) and CR Motor cable (red) in the order of hook D of the Main Frame, groove of the FFC Holder, and hook E of the Main Frame.

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Epson Stylus SX230 series / SX235W series / SX430W series / SX440W series Revision B

Relay Board

Scanner Motor cable

C.B.P-TITE SCREW 3x10 F/ZN-3C (5 ± 1 kgf·cm)

Grounding wire

Scanner Motor

Screw it with

grounding terminal

Scanner Motor

Scanner Carriage

Bottom of Scanner Carriage

Connector of Relay Board

Connector of CIS Module

Hole

Scanner FFC

Scanner Carriage

Rib

Double-sided tape

Hole

Rib

PS Unit cable

Bottom of Frame Base

PS Unit cable

Ferrite core

Frame Base

Bottom of Frame Base

PF Motor cable

PF Motor

Route PF Motor

cable through rib.

Secure PF Motor

cable (black) with rib.

Hole

Rib

Frame Base

PF Encoder FFC

CN7

Left side of printer

Ribs

Rib

PF Encoder Sensor

Double Side Tape

Scanner Motor

 Route the Scanner Motor cable through the hooks (x4) of the Scanner Motor as shown above.

 Secure the grounding wire of the Relay Board and the Scanner Motor together with the screw as show above.

Scanner FFC

Route the Scanner FFC as follows.

1. Insert the Scanner FFC through the hole of the Scanner Housing Lower in the direction shown above, and then secure the FFC with double-sided tape on position shown in the figure above.

2. Route the FFC through the ribs (x7) of the Scanner Housing Lower taking care not to damage the FFC.

3. Route the FFC through the ribs (x5) on the bottom of the Scanner Carriage taking care not to damage the FFC.

4. Connect the Scanner FFC to the Relay Board and CIS Module as shown above.

PS Unit

 Pull out the PS Unit cable from the hole of the Frame Base first, and then

 Put the ferrite core into the position shown in the figure above.

route it through the rib of the Frame Base.

PF Motor

Route the PF Motor cable as follows.

1. Pull out the PF Motor cable from the hole of the Frame Base.

2. Install the PF Motor, and secure the PF Motor cable (black) with the rib of the Frame Base, and then route it through the rib of the Frame Base.

PF Encoder Sensor

Route the PF Encoder FFC through the ribs (x2) of the Main Frame and connect it to the connector (CN7) on the Main Board, and then secure it with double-sided tape (x2) on the positions shown in the figure above.

Disassembly/Reassembly Routing FFCs/cables 40

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CHAPTER 3

ADJUSTMENT

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Epson Stylus SX230 series / SX235W series / SX430W series / SX440W series Revision B

3.1 Required Adjustments

The table from the following page lists the required adjustments depending upon the parts being repaired or replaced. Find the part(s) you removed or replaced, and check which adjustment(s) must be carried out.

 If the EEPROM data cannot be read out from the old Main Board using the Adjustment

Program when replacing the Main Board is required, the Waste Ink Pad Assy must be replaced with the Main Board at the same time.

 After all required adjustments are completed, use the “Final check pattern print”

function to print all adjustment patterns for final check. If you find a problem with the printout patterns, carry out the adjustment again.

 When replacing the Main Board, the adjustment should be made after performing the

initial setting.

 In this chapter, the product names are called as follows:

• SX230 series: Epson Stylus TX235/Epson Stylus SX230/Epson ME OFFICE 535

• SX235W series:

• SX430W series:

• SX440W series: Epson Stylus NX430/Epson Stylus TX435W/

 The table items and marks used in the “Required Adjustment List” provided on the

following pages have the following meanings.

• “O” indicates that the adjustment must be carried out.

• “---” indicates that the adjustment is not required.

• The “Mechanism Adjustment” should be performed just after reinstalling or reassembling the part or unit.

• The “Adjustments using the Adjustment Program” need to be performed after reassembling the printer completely.

 If you have removed or replaced multiple parts, make sure to check the required

adjustments for the all parts. And when multiple adjustments must be carried out, be sure to carry out them in the order given in the “Priority” row.

Epson Stylus NX230/Epson Stylus TX235W/Epson Stylus SX235W/ Epson Stylus TX230W

Epson Stylus NX330/Epson Stylus TX430W/Epson Stylus SX430W/ Epson Stylus SX435W/Epson ME OFFICE 570W

Epson Stylus SX440W/Epson Stylus SX445W

Adjustment Required Adjustments 42

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Epson Stylus SX230 series / SX235W series / SX430W series / SX440W series Revision B

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Table 3-1. Required Adjustment List

Adjustment Type Mechanism adjustment Adjustment using the Adjustment Program

Priority 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17

Adjustment Item

Purpose

Tray Front Assy

Star Wheel Holder Assy

Paper Guide Front Unit

Paper Guide Lower Porous Pad

Part Name

Printhead

Waste Ink Pad Assy

Retard Roller Assy

Remove

Replace

Remove

Replace

Remove

Replace

Remove

Replace

Remove

Replace

Remove

Replace

Remove

Replace

Checking the

Platen Gap

Check if the PG is within the standard.

CR/PF Belt

tension check

Check the tension of the CR Timing Belt and PF Timing Belt.

EEPROM

data copy

To copy adjustment values or the like stored on the old Main Board to the new board when the Main Board needs to be replaced.

Initialize Setting Head ID input Ink charge

To write saledestination-specific settings and the serial number into the Main Board after replacing it. And also to set the MAC address as necessary.

To correct characteristic variation of the replaced Printhead by entering its Printhead ID (Head ID).

To fill ink inside the new Printhead to make it ready for print after replacing the Printhead.

Maintenance

counter

To reset the waste ink counter after replacing the Waste Ink Pad Assy.

First dot

position

adjustment

To correct the print start position in the CR Unit moving direction through software control.

TOP margin

adjustment

This corrects top margin of printout.

Head angular

adjustment

To correct tilt of the Printhead caused at the installation through software control.

Bi-D adjustment PF adjustment

To correct print start timing in bidirectional printing through software control.

To correct variations in paper feed accuracy to achieve higher print quality.

PF band

adjustment

To correct variations in paper feed accuracy to achieve higher print quality in band printing.

PF deterioration

offset

To reset the counter or set it to its maximum according to the replaced parts.

--- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---

--- --- --- --- --- --- --- --- --- --- --- O --- --- --- --- ---

--- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---

--- --- --- --- --- --- --- --- --- --- --- O O --- --- --- ---

--- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---

O --- --- --- --- --- --- --- --- --- O O O --- --- --- ---

--- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---

--- --- --- --- --- --- O --- --- --- --- --- --- --- --- --- ---

---

--- --- --- --- --- --- --- --- O O --- --- --- --- --- ---

O --- --- --- O O --- O O O O --- O --- --- --- ---

--- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---

--- --- --- --- --- --- O --- --- --- --- --- --- --- --- --- ---

--- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---

--- --- --- --- --- --- --- --- O --- --- --- --- --- --- --- ---

CR motor heat

protection

control

To measure and correct the electrical variation of the motor and the power supply board.

PF motor heat

protection

control

To measure and correct the electrical variation of the motor and the power supply board.

Scanner motor heat protection

control

To measure and correct the electrical variation of the motor.

Printout pattern

How to judge

Adjustment program

Tool

Note "*1": Necessary when the part is replaced at a point in the disassembly procedures other than specified in this manual.

"*2": Replacement of the Paper Guide Lower Porous Pad and Waste Ink Pad Assy is necessary.

--- --- --- --- --- --- --- --- --- --- ---

See “ 3.3.1

Checking the Platen Gap (p49)”

for the details.

See “ 3.3.2 CR/PF

Belt Tension Check (p50)” for

the details.

--- --- --- --- ---

------ OOOOOOOOOOOOOOO

See p49 See p50

--- --- --- --- --- Ruler Ruler --- --- --- --- --- --- --- ---

Examine the misaligned lines printed on the left side of the paper, and enter the number beside the line that is exactly 5 mm away from the paper edge.

"*3": Perform PF Belt tension check only.

"*4": Perform CR Belt tension check only.

Examine the misaligned lines printed on top of the paper, and enter the number beside the line that is exactly 5 mm away from the paper edge.

NGOK

Enter the values of the most straight lines.

Examine the printout patterns for each of the four modes, and enter the value for the pattern with no gap and overlap for each mode.

OK NGNG

Normal area

pattern

Examine the printout patterns and enter the value for the pattern with fewest lines.

Bottom area

pattern

Examine the printout patterns and enter the value for the pattern with no overlap and gap between the two rectangles.

---

See “ 3.2.2.1 CR

Motor Heat Protection Control / PF Motor Heat Protection Control (p47)” for the

details.

See “ 3.2.2.1 CR

Motor Heat Protection Control / PF Motor Heat Protection Control (p47)” for the

details.

See “ 3.2.3

Scanner Motor Heat Protection Control (p48)” for

the details.

Adjustment Required Adjustments 43

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Epson Stylus SX230 series / SX235W series / SX430W series / SX440W series Revision B

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Table 3-1. Required Adjustment List

Adjustment Type Mechanism adjustment Adjustment using the Adjustment Program

Priority 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17

Adjustment Item

Purpose

Scanner Unit

Scanner Motor

PS Unit

PF Driven Pulley Assy

Part Name

PF Timing Belt

EJ Roller

Hopper

Remove

Replace

Remove

Replace

Remove

Replace

Remove

Replace

Remove

Replace

Remove

Replace

Remove

Replace

Checking the

Platen Gap

Check if the PG is within the standard.

CR/PF Belt

tension check

Check the tension of the CR Timing Belt and PF Timing Belt.

EEPROM

data copy

To copy adjustment values or the like stored on the old Main Board to the new board when the Main Board needs to be replaced.

Initialize Setting Head ID input Ink charge

To write saledestination-specific settings and the serial number into the Main Board after replacing it. And also to set the MAC address as necessary.

To correct characteristic variation of the replaced Printhead by entering its Printhead ID (Head ID).

To fill ink inside the new Printhead to make it ready for print after replacing the Printhead.

Maintenance

counter

To reset the waste ink counter after replacing the Waste Ink Pad Assy.

First dot

position

adjustment

To correct the print start position in the CR Unit moving direction through software control.

TOP margin

adjustment

This corrects top margin of printout.

Head angular

adjustment

To correct tilt of the Printhead caused at the installation through software control.

Bi-D adjustment PF adjustment

To correct print start timing in bidirectional printing through software control.

To correct variations in paper feed accuracy to achieve higher print quality.

PF band

adjustment

To correct variations in paper feed accuracy to achieve higher print quality in band printing.

PF deterioration

offset

To reset the counter or set it to its maximum according to the replaced parts.

--- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---

--- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- O

--- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---

--- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- O

--- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---

--- --- --- --- --- --- --- --- --- --- --- --- --- --- O O ---

--- O

--- --- --- --- --- --- --- --- --- --- --- --- --- --- ---

--- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---

--- --- --- --- --- --- --- --- --- --- --- O O --- --- --- ---

--- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---

--- --- --- --- --- --- --- O O --- O --- --- --- --- --- ---

CR motor heat

protection

control

To measure and correct the electrical variation of the motor and the power supply board.

PF motor heat

protection

control

To measure and correct the electrical variation of the motor and the power supply board.

Scanner motor heat protection

control

To measure and correct the electrical variation of the motor.

Printout pattern

How to judge

Adjustment program

Tool

Note "*1": Necessary when the part is replaced at a point in the disassembly procedures other than specified in this manual.

"*2": Replacement of the Paper Guide Lower Porous Pad and Waste Ink Pad Assy is necessary.

--- --- --- --- --- --- --- --- --- --- ---

See “ 3.3.1

Checking the Platen Gap (p49)”

for the details.

See “ 3.3.2 CR/PF

Belt Tension Check (p50)” for

the details.

--- --- --- --- ---

------ OOOOOOOOOOOOOOO

See p49 See p50

--- --- --- --- --- Ruler Ruler --- --- --- --- --- --- --- ---

Examine the misaligned lines printed on the left side of the paper, and enter the number beside the line that is exactly 5 mm away from the paper edge.

"*3": Perform PF Belt tension check only.

"*4": Perform CR Belt tension check only.

Examine the misaligned lines printed on top of the paper, and enter the number beside the line that is exactly 5 mm away from the paper edge.

NGOK

Enter the values of the most straight lines.

Examine the printout patterns for each of the four modes, and enter the value for the pattern with no gap and overlap for each mode.

OK NGNG

Normal area

pattern

Examine the printout patterns and enter the value for the pattern with fewest lines.

Bottom area

pattern

Examine the printout patterns and enter the value for the pattern with no overlap and gap between the two rectangles.

---

See “ 3.2.2.1 CR

Motor Heat Protection Control / PF Motor Heat Protection Control (p47)” for the

details.

See “ 3.2.2.1 CR

Motor Heat Protection Control / PF Motor Heat Protection Control (p47)” for the

details.

See “ 3.2.3

Scanner Motor Heat Protection Control (p48)” for

the details.

Adjustment Required Adjustments 44

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Epson Stylus SX230 series / SX235W series / SX430W series / SX440W series Revision B

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Table 3-1. Required Adjustment List

Adjustment Type Mechanism adjustment Adjustment using the Adjustment Program

Priority 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17

Adjustment Item

Purpose

LD Roller Assy

CR Motor

PE Sensor Lever

Part Name

Main Board

CR Driven Pulley

Main Frame Assy

Remove

Replace

Remove

Replace

Remove

Replace

Remove

Replace (Read OK)

Replace (Read NG)

Remove

Replace

Checking the

Platen Gap

Check if the PG is within the standard.

CR/PF Belt

tension check

Check the tension of the CR Timing Belt and PF Timing Belt.

EEPROM

data copy

To copy adjustment values or the like stored on the old Main Board to the new board when the Main Board needs to be replaced.

Initialize Setting Head ID input Ink charge

To write saledestination-specific settings and the serial number into the Main Board after replacing it. And also to set the MAC address as necessary.

To correct characteristic variation of the replaced Printhead by entering its Printhead ID (Head ID).

To fill ink inside the new Printhead to make it ready for print after replacing the Printhead.

Maintenance

counter

To reset the waste ink counter after replacing the Waste Ink Pad Assy.

First dot

position

adjustment

To correct the print start position in the CR Unit moving direction through software control.

TOP margin

adjustment

This corrects top margin of printout.

Head angular

adjustment

To correct tilt of the Printhead caused at the installation through software control.

Bi-D adjustment PF adjustment

To correct print start timing in bidirectional printing through software control.

To correct variations in paper feed accuracy to achieve higher print quality.

PF band

adjustment

To correct variations in paper feed accuracy to achieve higher print quality in band printing.

PF deterioration

offset

To reset the counter or set it to its maximum according to the replaced parts.

--- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---

--- --- --- --- --- --- --- --- O --- --- --- --- --- --- --- ---

--- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---

--- --- --- --- --- --- --- --- --- --- --- --- --- --- O --- ---

--- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---

--- --- --- --- --- --- --- --- O --- --- --- --- --- --- --- ---

--- --- O --- --- --- --- --- --- --- --- --- --- --- --- --- ---

--- --- --- O O --- O

OOOOOOOOO---

--- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---

--- O

--- --- --- --- --- --- --- --- --- --- --- --- --- --- ---

--- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---

OO*4---------------O---OOOO------------

CR motor heat

protection

control

To measure and correct the electrical variation of the motor and the power supply board.

PF motor heat

protection

control

To measure and correct the electrical variation of the motor and the power supply board.

Scanner motor heat protection

control

To measure and correct the electrical variation of the motor.

Printout pattern

How to judge

Adjustment program

Tool

Note "*1": Necessary when the part is replaced at a point in the disassembly procedures other than specified in this manual.

"*2": Replacement of the Paper Guide Lower Porous Pad and Waste Ink Pad Assy is necessary.

--- --- --- --- --- --- --- --- --- --- ---

See “ 3.3.1

Checking the Platen Gap (p49)”

for the details.

See “ 3.3.2 CR/PF

Belt Tension Check (p50)” for

the details.

--- --- --- --- ---

------ OOOOOOOOOOOOOOO

See p49 See p50

--- --- --- --- --- Ruler Ruler --- --- --- --- --- --- --- ---

Examine the misaligned lines printed on the left side of the paper, and enter the number beside the line that is exactly 5 mm away from the paper edge.

"*3": Perform PF Belt tension check only.

"*4": Perform CR Belt tension check only.

Examine the misaligned lines printed on top of the paper, and enter the number beside the line that is exactly 5 mm away from the paper edge.

NGOK

Enter the values of the most straight lines.

Examine the printout patterns for each of the four modes, and enter the value for the pattern with no gap and overlap for each mode.

OK NGNG

Normal area

pattern

Examine the printout patterns and enter the value for the pattern with fewest lines.

Bottom area

pattern

Examine the printout patterns and enter the value for the pattern with no overlap and gap between the two rectangles.

---

See “ 3.2.2.1 CR

Motor Heat Protection Control / PF Motor Heat Protection Control (p47)” for the

details.

See “ 3.2.2.1 CR

Motor Heat Protection Control / PF Motor Heat Protection Control (p47)” for the

details.

See “ 3.2.3

Scanner Motor Heat Protection Control (p48)” for

the details.

Adjustment Required Adjustments 45

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Table 3-1. Required Adjustment List

Adjustment Type Mechanism adjustment Adjustment using the Adjustment Program

Priority 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17

Adjustment Item

Purpose

Paper Guide Upper Assy

CR Unit

CR Timing Belt

Frame Base Assy

Part Name

PF Roller Unit

PF Motor Assy

Frame Base Replace

Remove

Replace

Remove

Replace

Remove

Replace

Remove

Replace

Remove

Replace

Checking the

Platen Gap

Check if the PG is within the standard.

CR/PF Belt

tension check

Check the tension of the CR Timing Belt and PF Timing Belt.

EEPROM

data copy

To copy adjustment values or the like stored on the old Main Board to the new board when the Main Board needs to be replaced.

Initialize Setting Head ID input Ink charge

To write saledestination-specific settings and the serial number into the Main Board after replacing it. And also to set the MAC address as necessary.

To correct characteristic variation of the replaced Printhead by entering its Printhead ID (Head ID).

To fill ink inside the new Printhead to make it ready for print after replacing the Printhead.

Maintenance

counter

To reset the waste ink counter after replacing the Waste Ink Pad Assy.

First dot

position

adjustment

To correct the print start position in the CR Unit moving direction through software control.

TOP margin

adjustment

This corrects top margin of printout.

Head angular

adjustment

To correct tilt of the Printhead caused at the installation through software control.

Bi-D adjustment PF adjustment

To correct print start timing in bidirectional printing through software control.

To correct variations in paper feed accuracy to achieve higher print quality.

PF band

adjustment

To correct variations in paper feed accuracy to achieve higher print quality in band printing.

PF deterioration

offset

To reset the counter or set it to its maximum according to the replaced parts.

--- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---

--- --- --- --- --- --- --- --- O --- O O O --- --- --- ---

--- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---

O --- --- --- --- --- --- O O O O --- O --- --- --- ---

--- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---

--- O

--- --- --- ------ --- --- --- --- --- --- --- --- --- --- ---

--- --- --- --- --- --- --- --- --- --- --- --- --- --- ---

--- --- --- --- --- O O --- O O O --- --- --- ---

--- --- --- --- --- --- --- --- --- --- --- --- --- --- ---

--- --- --- --- --- --- O --- --- O O O --- ---

--- --- --- --- --- --- --- --- --- --- --- --- --- O ---

CR motor heat

protection

control

To measure and correct the electrical variation of the motor and the power supply board.

PF motor heat

protection

control

To measure and correct the electrical variation of the motor and the power supply board.

Scanner motor heat protection

control

To measure and correct the electrical variation of the motor.

Printout pattern

How to judge

Adjustment program

Tool

Note "*1": Necessary when the part is replaced at a point in the disassembly procedures other than specified in this manual.

"*2": Replacement of the Paper Guide Lower Porous Pad and Waste Ink Pad Assy is necessary.

--- --- --- --- --- --- --- --- --- --- ---

See “ 3.3.1

Checking the Platen Gap (p49)”

for the details.

See “ 3.3.2 CR/PF

Belt Tension Check (p50)” for

the details.

--- --- --- --- ---

------ OOOOOOOOOOOOOOO

See p49 See p50

--- --- --- --- --- Ruler Ruler --- --- --- --- --- --- --- ---

Examine the misaligned lines printed on the left side of the paper, and enter the number beside the line that is exactly 5 mm away from the paper edge.

"*3": Perform PF Belt tension check only.

"*4": Perform CR Belt tension check only.

Examine the misaligned lines printed on top of the paper, and enter the number beside the line that is exactly 5 mm away from the paper edge.

NGOK

Enter the values of the most straight lines.

Examine the printout patterns for each of the four modes, and enter the value for the pattern with no gap and overlap for each mode.

OK NGNG

Normal area

pattern

Examine the printout patterns and enter the value for the pattern with fewest lines.

Bottom area

pattern

Examine the printout patterns and enter the value for the pattern with no overlap and gap between the two rectangles.

---

See “ 3.2.2.1 CR

Motor Heat Protection Control / PF Motor Heat Protection Control (p47)” for the

details.

See “ 3.2.2.1 CR

Motor Heat Protection Control / PF Motor Heat Protection Control (p47)” for the

details.

See “ 3.2.3

Scanner Motor Heat Protection Control (p48)” for

the details.

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Execute button

Check the check box of the replaced parts.

Execute button

Check the check box of the replaced parts.

3.2 Adjustment Program

This section provides the operating environment, functions related to safety and privacy policy, and the adjustment item newly added of the Adjustment Program. See "3.1 Required Adjustments (p42)" for the adjustments not explained here.

3.2.1 Operating Environment

The operating environment for the Adjustment Program is as follows.

 OS: Windows XP, Vista

 Interface: USB

3.2.2 Details of the Adjustment Program

Refer to the guide in the Adjustment Program for the details of the procedure.

3.2.2.1 CR Motor Heat Protection Control / PF Motor Heat Protection Control

Purpose To measure the manufacturing variations of the DC motors (CR Motor/PF Motor), Main Board and Power

Supply Board to determine the correction value used for estimating the current values of the motors.

Risks if the adjustment is not correctly made

Procedure 1. Select from the menu of the Adjustment Program. Check the check box of the replaced parts and press the

Adjustment Program screen

The printer cannot measure the current value of motor correctly, then the heat generation caused by motor drive cannot be estimated accurately either, and which may results in trouble such as incorrect control of motors when allotting a cool down period according to each heat generation.

In the worst case, excessive heat generation may cause smoke or ignition.

“Execute” button to measure the correction value.

2. The correction value is automatically measured and the measurement value is written to the EEPROM on

the Main Board.

Remarks ---

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Perform button

Check button

3.2.3 Scanner Motor Heat Protection Control

Purpose To measure the manufacturing variation of the DC motor (Scanner) to determine the correction value used for

estimating the current value of the motor.

Risks if the adjustment is not cor-

rectly made

Procedure 1. Select from the menu of the Adjustment Program and press the “Perform” button to measure the correction

Adjustment Pro-

gram screen

Because the printer cannot measure the current value of the motor accurately, even if just a mechanical load with which the Scanner Carriage can operate without any problem is applied, the printer cannot control the drive of the motors correctly, which may result in occurrence or generation of scanner fatal error, vibration, or noises.

value.

2. Turn off the printer and turn it back on.

After the Scanner Carriage is operated, the correction value is automatically measured and the measurement value is written to the EEPROM on the Main Board.

3. Press the “Check“ button to confirm the written value in the EEPROM is within the standard range.

Remarks ---

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80-digit side

Thickness gauge

0-digit side

Thickness gauge

3.3 Mechanism Adjustment / Check

This section provides the procedure for the mechanism adjustment and check.

3.3.1 Checking the Platen Gap

This section describes the procedure for checking the platen gap (PG).



This printer does not have any PG adjustment mechanism, however, it is designed so that the platen gap can fall within the expected range if you correctly reassemble the unit (including using the Epson-specified jigs) according to this manual. If the PG cannot fall within the standard range after performing the platen gap check described in this section, first check if the unit is correctly reassembled following the instructions in this manual. Even if the unit is correctly reassembled but the PG still cannot fall within the standard range, replace the unit with a new/refurbished one.

 The standard range of the PG is as follows:

• Standard: 1.75 ± 0.25 mm

 Tools



Thickness gauge: 1.5 mm (x2), 2.0 mm (x2)

 Confirmation procedure

When checking the PG, make sure of the following.  Check the PG with new ink cartridges installed to the CR Unit, and also with all parts

related to the PG installed to the printer (p 42).

 Move the CR Unit by pulling the CR Timing Belt.  Be careful not to damage the nozzles of the Printhead with the thickness gauge.

1. Move the CR Unit to the center of the printer.

2. Place the thickness gauges (1.5 mm) on the positions shown in Figure 3-1.

Figure 3-1. Position of the Thickness Gauge

3. Pull the CR Timing Belt to move the CR Unit to both ends and confirm the CR Unit does not touch the thickness gauges. If the CR Unit comes in contact with the thickness gauges, the PG is smaller than the standard value, therefore, check if the unit is correctly reassembled. If not, reassemble the unit and perform PG check again. (If the unit is correctly reassembled, replace the unit with a new/refurbished one.)

4. Move the CR Unit to the center, and replace the thickness gauges (1.5 mm) with the thickness gauges (2.0 mm) on the same positions as Step 2.

5. Pull the CR Timing Belt to move the CR Unit to both ends and confirm the CR Unit touches the thickness gauges. If the CR Unit does not come in contact with the thickness gauges, the PG is greater than the standard value, therefore, check if the unit is correctly reassembled. If not, reassemble the unit and perform PG check again. (If the unit is correctly reassembled, replace the unit with a new/refurbished one.)

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CR Timing Belt Measurement position CR Unit

3.3.2 CR/PF Belt Tension Check

This section describes the CR/PF Belt tension check.

 This printer is designed so that the each tension of the CR Timing Belt and PF Timing

Belt fall within the expected range if you correctly reassemble the unit according to this manual. However, deformation of any related part(s) can cause improper tension of the belt. In such case, replace the unit with a new/refurbished one.

 The standard tension range is as follows:

• CR Timing Belt: 10.5 ± 1 N

• PF Timing Belt: 4 ± 1 N

 Tools



Sonic tension meter

 Plastic tweezers

 Confirmation procedure

When performing the CR/PF Belt tension check, make sure of the following.

 Bring the microphone of the sonic tension meter within 5 mm from the timing belt but do

not let it touch the belt.

 Flip the timing belt as weak as the sonic tension meter can measure it.  Be careful not to damage the timing belt when flipping it with the plastic tweezers.

Checking the CR Timing Belt Tension

Perform the CR Belt tension check after performing " 3.3.1 Checking the Platen Gap (p49)".

1. Move the CR Unit to 0-digit side.

2. Set the following parameters to the sonic tension meter:

Weight: 1.1 kg/m

  Width: 3 mm  Span: 326 mm

3. Bring the microphone of the sonic tension meter close to the position shown in Figure 3-2.

4. Press the “MEASURE” button of the sonic tension meter and flip the upper of the CR Timing Belt with plastic tweezers and measure the tension of the belt three times.

5. Check the average of the measured values falls within the standard range.



Within the standard range: the CR Timing Belt tension check is complete.

 Out of the standard range: replace the unit with a new/refurbished one.

Figure 3-2. Checking the CR Timing Belt Tension

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PF Driven Pulley Assy

PF Timing Belt

Left side

Measurement position

Checking the PF Timing Belt Tension

Perform the PF Belt tension check before installing the PF Scale and the PF Encoder Sensor.

1. Set the following parameters to the sonic tension meter:

Weight: 1.0 kg/m

  Width: 3.2 mm  Span: 29 mm

2. Bring the microphone of the sonic tension meter close to the position shown in Figure 3-3.

3. Press the “MEASURE” button of the sonic tension meter and flip the lower of the PF Timing Belt with

plastic tweezers and measure the tension of the belt three times.

4. Check the average of the measured values falls within the standard range.



Within the standard range: the PF Timing Belt tension check is complete.

 Out of the standard range: reinstall the PF Driven Pulley Assy (p35) , and then perform the PF Timing Belt Tension

Check again.

Figure 3-3. Checking the PF Timing Belt Tension

If not within the standard though performing the PF Timing Belt Tension Check twice, replace the unit with a new/refurbished one.

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CHAPTER 4

MAINTENANCE

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4.1 Overview

This section provides information to maintain the printer in its optimum condition.

4.1.1 Cleaning

Except for the Printhead, there are no other mechanical parts or units that require periodic cleaning. However, if need arises, clean the component observing the following instructions.

 Instructions for cleaning



Exterior parts such as housing Wipe dirt off with a soft clean cloth moistened with water. For glossy or transparent parts, use of unwoven cloth is recommended to avoid scratching those parts.

 Inside of the printer

Remove paper dust with a vacuum cleaner.

 Rubber or plastic rollers such as an LD roller used to feed paper

If paper dust adhered to the rollers decreases the frictional force of the rollers and the rollers cannot properly feed paper, wipe off the paper dust with a soft cloth moistened with diluted alcohol.

 Instructions for cleaning ink stains

Wipe the stains off with a cloth wrung out of diluted alcohol.

 Do not use alcohol for cleaning the transparent parts. Doing so may cause them to get

cloudy.

 When wiping paper dust off the LD Roller, be careful not to rub against the surface

asperity.

 To minimize the effect on the parts, use diluted alcohol such as 70% diluted ether.

 After using alcohol for cleaning, make sure to wipe the part off with a soft dry dust-free

cloth to remove alcohol traces fully.

4.1.2 Lubrication

The type and amount of the grease used to lubricate the printer parts are determined based on the results of the internal evaluations. Therefore, refer to "4.2 Lubrication Points and Instructions (p54)" for the repairing procedures below, and apply the specified type and amount of the grease to the specified part of the printer mechanism.

"4.2 Lubrication Points and Instructions (p54)" also provides information about whether or not the parts which

require lubrication are supplied as ASP and the lubrication status when supplied as ASP. For the parts which are not supplied as ASP, if their movement is not smooth enough, check their lubrication status and lubricate them if necessary.

 Grease

Type Name EPSON Part Code Supplier

Grease G-45 1033657 EPSON

Grease G-71 1304682 EPSON

Grease G-74 1409257 EPSON

 Tools

Name Availability EPSON Part Code

Injector O * ---

Brush O * ---

Flux dispenser O * 1049533

Note *: Use tools whose specifications are specified in "4.2 Lubrication Points and Instructions (p54)".

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Frame Base

Application Point

Apply grease inside the rail section.

Application Point

Frame Base

Rear right

Apply inside the groove

Rear left

Apply inside the groove

Apply grease on ribs

Bottom

Apply grease on both sides of dowels

Apply grease on ribs

2. Application Point

1. Application Point

Frame Base

4.2 Lubrication Points and Instructions

None

---

Contact points (x12) on the Frame Base with the EJ Roller

<Type>

G-74

Appropriate amount

 Apply with flux

dispenser.

 Stir G-74 before use.

None

---

1. Contact points (x2) on the Frame Base with the Paper Support Assy

2. Contact points (x7) on the Frame Base with the Stacker Assy

<Type>

G-74

Appropriate amount

 Apply with flux

dispenser.

 Stir G-74 before use.

Figure 4-1. Lubrication of the Frame Base (1)

None

---

Contact points (x2) on the Frame Base with the Panel Assy

<Type>

G-74

Appropriate amount

 Apply with flux

dispenser.

 Stir G-74 before use.

Maintenance Lubrication Points and Instructions 54

Figure 4-2. Lubrication of the Frame Base (2)

Figure 4-3. Lubrication of the Frame Base (3)

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LD Roller Assy

2. Application Point

1. Application Point

EJ Roller

Application Point

Frame Base

EJ Roller Gear

Application Point

CR Driven Pulley Holder

2. Application Point

1. Application Point

PF Roller

Application Point

Frame Base

Paper Back Lever

Application Point

Yes

Not lubricated

1. Cam of the LD Roller Assy (contact point with the Hopper)

2. Cam of the LD Roller Assy (contact point with the Paper Back Lever)

<Type>

G-71

Circumference of each cam (0.05 g each)

 Apply with injector.  Lubricate before

attaching the part.

Yes

Not lubricated

Contact point (x1 on the shaft) on the EJ Roller with the Frame Base

<Type>

G-71

0.06 g

 Apply with injector.  Lubricate before

attaching the part.

Yes

Not lubricated

Shaft on the EJ Roller Gear

<Type>

G-71

φ 1 mm x 1 circle

 Using injector, apply

grease along the tier on the shaft.

 Lubricate before

attaching the part.

<Part supply as ASP> None <Lubrication status when

supplied as ASP>

---

On the bearings (x2) of the CR Driven Pulley on the CR Driven Pulley Holder

2. Contact points (x4) on the groove of the CR Driven Pulley Holder with the Main Frame

<Type> G-71

<Application Amount> Appropriate amount

1. After applying with injector, attach the CR Driven Pulley and rotate it twice to spread grease.

2. Apply with injector. Wipe the grease that run off the CR Driven Pulley Holder.

 Check the lubrication

condition and apply grease if necessary.

Figure 4-4. Lubrication of the LD Roller Assy Figure 4-5. Lubrication of the EJ Roller

Yes

Not lubricated

Contact points (x3 on the shaft) on the PF Roller with the Frame Base

<Type>

G-71

On each contact point around the shaft (appropriate amount)

 Apply with injector.  Lubricate before

attaching the part.

Figure 4-6. Lubrication of the EJ Roller Gear

Yes

Not lubricated

Contact points (x2) on the Paper Back Lever with the Frame Base

<Type>

G-71

0.06 g x 2 points

 Apply with injector.  Lubricate before

attaching the part.

Figure 4-7. Lubrication of the CR Driven Pulley Assy

Figure 4-8. Lubrication of the PF Roller

Figure 4-9. Lubrication of the Paper Back Lever

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Main Frame Assy

CR Unit

Application Point

Main Frame Assy

Frame Base

Scanner Housing Lower

Spread grease with brush.

Guide rail

Application Point

Section A (See Cross-section view.)

Cross-section of section A

Scanner Carriage

CIS Module Unit

Application Point

None

---

1. Contact point (x1) on the upper side of the Main Frame Assy with the CR Unit

2. Contact points (x4) on the lower side of the Main Frame Assy with the CR Unit

<Type>

G-71

Appropriate amount

Apply with injector.

Supplied as the Scanner Unit

Lubricated

Contact points (x6) on the Scanner Carriage with the CIS Module Unit

<Type>

G-74

Appropriate amount

 Apply with flux

dispenser.

 Stir G-74 before use.  For section A, apply

grease over the area shown in the Crosssection view.

Figure 4-10. Lubrication of the Main Frame Assy

Supplied as the Scanner Unit

Lubricated

Guide rail of the Scanner Housing Lower

<Type>

G-45

0.03 g x 3 points

After applying with injector, spread it with brush in the direction of the arrow.

Maintenance Lubrication Points and Instructions 56

Figure 4-11. Lubrication of the Scanner Housing Lower

Figure 4-12. Lubrication of the Scanner Carriage (1)

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Scanner Carriage

Enlarged figure

Apply on the

center of inner

wall (x4 points).

Application Point

Panel Stand

Application Point

Scanner Motor

Pinion Gear

Scanner Carriage

Cross-section

Combination gear 14.4,10.8

Combination gear 13.8,9.66

Application Point

Supplied as the Scanner Unit

Lubricated

On inner wall surfaces (x4) on the groove of the Scanner Carriage

<Type>

G-45

0.01 g x 4 points

 Using injector, apply

grease on inner wall surfaces (x4) on the groove shown in the enlarged figure.

 Be careful not to let

grease flow over.

Supplied as the Panel Unit

Lubricated

Shafts (x4) of the Panel Stand

<Type>

G-74

Appropriate amount

 Using flux dispenser,

apply all over the shafts shown in the figure.

 Stir G-74 before use.

Figure 4-13. Lubrication of the Scanner Carriage (2)

<Part supply as ASP> Supplied as the Scanner Unit <Lubrication status when supplied as ASP> Lubricated

1. Gear sections (x2) on the Pinion Gear of the Scanner Motor

2. Shaft hole of the Combination Gear 14.4.10.8

3. Shaft hole of the Combination Gear 13.8.9.66

<Type> G-45

1. 0.01 g x 2 points

2.3. 0.01 g

1. Apply with injector.

2.3.

After applying with

injector, spread it over the entire inner surface the shaft hole shown in the figure.

 Be careful not to let

grease flow over.

Figure 4-14. Lubrication of the Panel Stand

Figure 4-15. Lubrication of Scanner Motor, Combination Gear 14.4,10.8 and Combination Gear 13.8,9.66

Maintenance Lubrication Points and Instructions 57

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CHAPTER 5

REFURBISHMENT

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5.1 Overview

This chapter provides the refurbishing work of the printer and its purpose.

5.1.1 Ink Discharge

 Purpose

To clean the ink path inside the Printhead to restore its condition identical to the factory default.

 Jigs

Required jigs and cleaning liquid for cleaning the ink path is as follows.

Name Category EPSON Part Code

Ink Supply Jig Jig 20MJ05245-A101

CSIC Chip (Bk) Jig 2211500JT1

CSIC Chip (C) Jig 2211500JT3

CSIC Chip (M) Jig 2211500JT5

CSIC Chip (Y) Jig 2211500JT6

Shipping Liquid (CR06, 18kg) Cleaning Liquid 6104714

Shipping Liquid (CR06, 1kg) Cleaning Liquid 6104713

I/P, DPIC009BSP, 110, PRINTING Ink Pack 1462531

 Operation of the Adjustment Program for refurbishment when performing the ink discharge

Ink discharge can be done by selecting and running “Ink Discharge” from the Adjustment Program for refurbishment with the jig set on the printer.

At this point, the factory default values except the adjustment-related setting values are written on the EEPROM on the Main Board of the printer. This is performed in order to erase the personal information including the network settings and the operating information of the printer before refurbishment, etc.

This default value restoration is automatically done when performing the ink discharge by the Adjustment Program for refurbishment automatically.

 For the details of how to set the jigs for refurbishment and how to use the Adjustment

Program (for refurbishment), see guide in the Adjustment Program (for refurbishment).

 Approximately three minutes and ten seconds are necessary for completing the Ink

Discharge.

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CHAPTER 6

APPENDIX

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6.1 Connector Diagram

In this chapter, the product names are called as follows:

 SX230 series: Epson Stylus TX235/Epson Stylus SX230/Epson ME OFFICE 535  SX235W series: Epson Stylus NX230/Epson Stylus TX235W/Epson Stylus SX235W/

Epson Stylus TX230W

 SX430W series: Epson Stylus NX330/Epson Stylus TX430W/Epson Stylus SX430W/

Epson Stylus SX435W/Epson ME OFFICE 570W

 SX440W series:

Cable connections of this printer are shown below.

Epson Stylus NX430/Epson Stylus TX435W/Epson Stylus SX440W/ Epson Stylus SX445W

CR Unit

Printhead

CN102

CR Contact Module

CN6 CN11

PE Sensor

CR Motor

CSIC

CN1

Main Board

PF Motor

CR Encoder

CN1

CN501 CN9 CN7CN13CN12

Scanner Unit

SCN Motor

CN1

CN2

CN3

CN4

PF Encoder

CIS

Panel Unit

SX230 series/SX430W series

Panel Board

CN1 CN2

SX235W series

Panel Board

CN1

SX440W series

Panel Board

CN1 CN2

USB

SX235W series/ SX430W series/

WiFi Board

SX440W series

LCD

CN3

PS Board

AC in

Card Slot Board

SX230 series/ SX430W series/ SX440W series

Figure 6-1. Connector Diagram

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Align the point 125 mm from the folded end of strong tape with the corner.

Strong tape

CR Unit

Housing Right

Change Lever

Align here with corner of Housing Right Fold here

CR Unit side Housing Right side

Strong tape

6.2 Protection for Transportation

This section describes the cautions for packing the printer before returning it to the user.

6.2.1 Securing the CR Unit

 Purpose

To prevent damaging the Change Lever by shock during transportation.

 Risks if it is not performed

Fatal error caused by the damage of the Change Lever.

 Preparation

Prepare a piece of strong tape (length: 160 mm, width: 22 mm, fold one end 5 mm).

 Method

1. Turn off the printer to set the CR Unit to its home position.

2. Pull the CR Timing Belt, and move the CR Unit to the 80-digit side slightly so that the CR Unit can touch the side of the tip on the Change Lever.

3. Attach the folded end of strong tape on the Housing Right. The point of the tape 125 mm from the folded end should be aligned with the corner of the Housing Right, then.

4. Attach the unfolded end of strong tape to the side of the CR Unit, and secure the CR Unit.

In order to prevent damaging the Change Lever, the CR Unit should be secured at the position indicated in Step 2. Therefore, when securing the CR Unit with strong tape, hold the Timing Belt to keep the position of the CR Unit as is and avoid the CR Unit from moving to the 0-digit side.

160 mm

120 mm30 mm

10 mm

Figure 6-2. Securing the CR Unit

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Rear

Folded ends

Paper Support Assy Housing LeftHousing Right

6.2.2 Securing the Paper Support Assy

 Purpose

To prevent damaging the Paper Support Assy by the shock during transportation.

 Risks if it is not performed

The Paper Support Assy will be scratched and the abrasion powder will be produced due to the shock during transportation.

 Preparation

Prepare two pieces of strong tape (length: 85 mm, width: 22 mm, fold one end 5 mm).

 Method

Attach strong tape on both sides of the Paper Support Assy and secure the Paper Support Assy to the Housing Right/Housing Left.

Figure 6-3. Securing the Paper Support Assy

Appendix Protection for Transportation 63

Confidential

Epson Stylus SX230, Stylus SX235W, Stylus SX430W, Stylus SX440W Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Notice:

Safety Precautions

About This Manual

Revision Status

Contents

TROUBLESHOOTING

1.1 Troubleshooting

1.1.1 Troubleshooting Workflow

1.2 Power-On Sequence

1.3 Fatal Error Code List

1.3.1 Displaying the Fatal Error Code

1.3.2 Printer Fatal Error Code

1.3.3 Scanner Fatal Error Code

DISASSEMBLY/REASSEMBLY

2.1 Overview

2.1.1 Tools

2.1.2 Jigs

2.1.2.1 Making the Spring Hook Jig

2.1.3 Locations of the Parts/Units

2.1.4 Standard Operation Time for Servicing the Product

2.2 Disassembly/Reassembly Procedures

2.2.1 Disassembly Flowchart

2.2.2 Disassembly Flowchart (Printhead/Main Board)

2.3 Detailed Disassembly/Reassembly Procedure for each Part/Unit

2.4 Routing FFCs/cables

ADJUSTMENT

3.1 Required Adjustments

3.2 Adjustment Program

3.2.1 Operating Environment

3.2.2 Details of the Adjustment Program

3.2.2.1 CR Motor Heat Protection Control / PF Motor Heat Protection Control

3.2.3 Scanner Motor Heat Protection Control

3.3 Mechanism Adjustment / Check

3.3.1 Checking the Platen Gap

3.3.2 CR/PF Belt Tension Check

MAINTENANCE

4.1 Overview

4.1.1 Cleaning

4.1.2 Lubrication

4.2 Lubrication Points and Instructions

REFURBISHMENT

5.1 Overview

5.1.1 Ink Discharge

APPENDIX

6.1 Connector Diagram

6.2 Protection for Transportation

6.2.1 Securing the CR Unit

6.2.2 Securing the Paper Support Assy